It's about seventeen times the number of Teeth in a Great White Shark's Mouth.
In other words, the count of Teeth in a Great White Shark's Mouth is 0.059 times 820.(Carcharodon carcharias) (average; including developing rows)
A Great White Shark has 48 exposed teeth on their upper and lower jaws. Behind these exposed teeth are developing teeth — up to 300 in about 5 rows. The sharks will continuously lose and replace the exposed teeth throughout their lives.
It's about thirty times the number of Countries in the European Union.
In other words, the count of Countries in the European Union is 0.034 times 820.(a.k.a. EU) (2016 figures)
There are 28 member countries in the European Union, the latest member of which is Croatia. The EU is largely urban, with sixteen cities having a population of one million or more, and 75% of the population living in an urban area.
It's about one-forty-fifth the number of McDonald's Locations in the World.
In other words, the count of McDonald's Locations in the World is 43 times 820.(2015 figures) (approximate)
Operating in 119 countries, there are currently 36,000 McDonald's locations worldwide. From 1955 thru 1993, many McDonald's locations advertised the number in billions of hamburgers sold on their external signs, but abandoned theses updates after the figure passed 100 billion.
It's about one-forty-fifth the number of Seats in Fenway Park.
In other words, 820 is 0.02212 times the count of Seats in Fenway Park, and the count of Seats in Fenway Park is 45.2080 times that amount.(2013 figures; daytime capacity) (a.k.a. The Cathedral of Boston) (Boston, Massachusetts)
Fenway Park, the home of the Boston Red Sox baseball team, can accommodate 37,071 spectators when configured for daytime seating. Fenway Park holds the record for most consecutive sellout games, with a streak of 794 sellouts that ended in 2013. This figure is a dramatic turnaround from the attendance in 1965, which was at times as low as just 500 people.
It's about one-fiftieth the number of Seats in The Colosseum.
In other words, the count of Seats in The Colosseum is 50 times 820.(a.k.a. The Coliseum, a.k.a. Flavian Amphitheatre, a.k.a. Amphitheatrum Flavium, a.k.a. Anfiteatro Flavio or Colosseo) (Rome) (estimated)
It's about 55 times the number of Living Kings and Queens.
In other words, the count of Living Kings and Queens is 0.018 times 820.(2015 figures) (distinct Monarchs)
It's about one-sixtieth the number of Seats in New Yankee Stadium.
In other words, 820 is 0.016306 times the count of Seats in New Yankee Stadium, and the count of Seats in New Yankee Stadium is 61.3270 times that amount.(2014 figures for 2009 Stadium; seating figures only) (a.k.a. Yankee Stadium, a.k.a. The Stadium, a.k.a. The House that George Built) (South Bronx, New York City, New York)