8664256 has 28 divisors (see below), whose sum is σ = 17287240. Its totient is φ = 4308480.

The previous prime is 8664223. The next prime is 8664259. The reversal of 8664256 is 6524668.

It is not an unprimeable number, because it can be changed into a prime (8664259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20980 + ... + 21388.

Almost surely, 2^8664256 is an apocalyptic number.

It is an amenable number.

8664256 is a deficient number, since it is larger than the sum of its proper divisors (8622984).

8664256 is a wasteful number, since it uses less digits than its factorization.

8664256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 742 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 8664256 is about 2943.5108289252. The cubic root of 8664256 is about 205.3889581500.

The spelling of 8664256 in words is "eight million, six hundred sixty-four thousand, two hundred fifty-six".