8513664 has 32 divisors (see below), whose sum is σ = 22615440. Its totient is φ = 2837760.

The previous prime is 8513647. The next prime is 8513677. The reversal of 8513664 is 4663158.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

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, 10702 + ... + 11469.

Almost surely, 2^8513664 is an apocalyptic number.

It is an amenable number.

8513664 is an abundant number, since it is smaller than the sum of its proper divisors (14101776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8513664 is a wasteful number, since it uses less digits than its factorization.

8513664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22188 (or 22176 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 8513664 is about 2917.8183630925. The cubic root of 8513664 is about 204.1920528940.

The spelling of 8513664 in words is "eight million, five hundred thirteen thousand, six hundred sixty-four".