Fatto generale: 6989 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 6989 is an uninteresting number.
Trivia: 6989 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: February 18th is the day in 1977 that the Space Shuttle Enterprise test vehicle is carried on its maiden "flight" on top of a Boeing 747.