Fatto matematico: 6514 is the sum of the 4^{th} powers of the digits of the sum of the 4^{th} powers of the digits of itself.
Trivia: 6514 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: October 31st is the day in 1999 that EgyptAir Flight 990 traveling from New York City to Cairo crashes off the coast of Nantucket, Massachusetts, killing all 217 on-board.