Fatto generale: 16997 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 16997 is a boring number.
Trivia: 16997 is a boring number.
Data storica: July 14th is the day in 1911 that Harry Atwood, an exhibition pilot for the Wright Brothers lands his airplane at the South Lawn of the White House.