Fait général: 67821 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 67821 is a boring number.
Culture générale: 67821 is an unremarkable number.
Date historique: September 7th is the day in 2010 that a Chinese fishing trawler collided with two Japanese Coast Guard patrol boats in disputed waters near the islands.