Fatto matematico: 694 is the number of different arrangements (up to rotation and reflection) of 7 non-attacking rooks on a 7×7 chessboard.
Trivia: 694 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: November 24th is the day in 1992 that a China Southern Airlines domestic flight in the People's Republic of China, crashes, killing all 141 people on-board.