-8 is an even number.
-8 is a Harshad number, which means it is divisible by the sum of its digits (8 = 8, and -8 is divisible by 8).
In binary, -8 is represented as 1111111111111111111111111111111111111111111111111111111111111000.
In hex, -8 is represented as fffffffffffffff8.