8664664 has 8 divisors (see below), whose sum is σ = 16246260. Its totient is φ = 4332328.

The previous prime is 8664661. The next prime is 8664671. The reversal of 8664664 is 4664668.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8664661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541534 + ... + 541549.

Almost surely, 2^8664664 is an apocalyptic number.

It is an amenable number.

8664664 is a deficient number, since it is larger than the sum of its proper divisors (7581596).

8664664 is a wasteful number, since it uses less digits than its factorization.

8664664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083089 (or 1083085 counting only the distinct ones).

The product of its digits is 165888, while the sum is 40.

The square root of 8664664 is about 2943.5801331032. The cubic root of 8664664 is about 205.3921820229.

The spelling of 8664664 in words is "eight million, six hundred sixty-four thousand, six hundred sixty-four".