Hecho matemático: 83504 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 83504 is an uninteresting number.
Fecha histórica: August 16th is the day in 1927 that the Dole Air Race begins from Oakland, California, to Honolulu, Hawaii, during which six out of the eight participating planes crash or disappear.