Fait général: 7746 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 7746 is the number permutations of {1,2,3,...,21} where adjacent numbers differ by no more than 2.
Culture générale: 7746 is a boring number.
Date historique: March 16th is the day in 1984 that William Buckley, the CIA station chief in Beirut, Lebanon, is kidnapped by Islamic fundamentalists and later died in captivity.