Fait mathématique: 86476 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Culture générale: 86476 is an uninteresting number.
Date historique: October 5th is the day in 1905 that Wilbur Wright pilots Wright Flyer III in a flight of 24 miles in 39 minutes, a world record that stood until 1908.