Fatto generale: 9992 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 9992 is the number of 2×2×2 Rubik's cube positions that require exactly 5 moves to solve.
Trivia: 9992 is an uninteresting number.
Data storica: May 10th is the day in 1981 that François Mitterrand wins the presidential election and becomes the first Socialist President of France in the French Fifth Republic.