Mathematical fact: 80384 is an unremarkable number.
Trivia: 80384 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Historical date: January 31st is the day in 1996 that an explosives-filled truck rams into the gates of the Central Bank of Sri Lanka in Colombo, Sri Lanka killing at least 86 and injuring 1,400.