Eight

8 is an even number.

8 is a palindrome.

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 1000.

In hex, 8 is represented as 8.

8 is an Armstrong (or Narcissistic) number, which means it is the sum of its own digits each raised to the power of the number of digits.

8 is the 6th Fibonacci number.

Prime factorization of 8: 2^{3}.