Hecho general: 8684 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 8684 is an unremarkable number.
Trivia: 8684 is a boring number.
Fecha histórica: October 10th is the day in 1973 that Vice President of the United States Spiro Agnew resigns after being charged with federal income tax evasion.