579

579 = 3 x 193.

579, 581, and 583 are three consecutive odd numbers that are all semiprimes (A092207).

579 is the sum of the squares of three consecutive primes (A133529): 579 = 11² + 13² + 17².

579 is a menage number (A000179).

579 is 2403 in base 6 and 403 in base 12. It is 21003 in base 4 and 1103 in base 8.

579 is the number of graphs with 7 vertices that have chromatic number 3.

579 is a structured great rhombicosidodecahedral number (A100145).

Source: What's Special About This Number?