Fait général: 15677 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 15677 is a boring number.
Culture générale: 15677 is an uninteresting number.
Date historique: December 2nd is the day in 1775 that the USS Alfred becomes the first vessel to fly the Grand Union Flag (the precursor to the Stars and Stripes); the flag is hoisted by John Paul Jones.