Fait mathématique: 4913 is the cube of the sum of its digits.
Culture générale: 4913 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: June 13th is the day in 2010 that a capsule of the Japanese spacecraft Hayabusa, containing particles of the asteroid 25143 Itokawa, returns to Earth.