8636664 has 32 divisors (see below), whose sum is σ = 22338000. Its totient is φ = 2779392.

The previous prime is 8636647. The next prime is 8636671. The reversal of 8636664 is 4666368.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5509 + ... + 6900.

Almost surely, 2^8636664 is an apocalyptic number.

It is an amenable number.

8636664 is an abundant number, since it is smaller than the sum of its proper divisors (13701336).

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

8636664 is a wasteful number, since it uses less digits than its factorization.

8636664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12447 (or 12443 counting only the distinct ones).

The product of its digits is 124416, while the sum is 39.

The square root of 8636664 is about 2938.8201714293. The cubic root of 8636664 is about 205.1707005729.

The spelling of 8636664 in words is "eight million, six hundred thirty-six thousand, six hundred sixty-four".