599 is a prime number.
599 and 601 form a twin prime pair.
599 is a number that cannot be written as a sum of three squares.
599 is a divisor of 1913 - 1.
599 is the smallest number whose digits add to 23.
The Administrative building in the town of Saint-Prime, Quebec, is at the street address 599, rue Principale.
Source: Prime Curios!
