8972664 has 16 divisors (see below), whose sum is σ = 22431720. Its totient is φ = 2990880.

The previous prime is 8972657. The next prime is 8972669. The reversal of 8972664 is 4662798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8972669) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 186907 + ... + 186954.

Almost surely, 2^8972664 is an apocalyptic number.

It is an amenable number.

8972664 is an abundant number, since it is smaller than the sum of its proper divisors (13459056).

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

8972664 is a wasteful number, since it uses less digits than its factorization.

8972664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373870 (or 373866 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 8972664 is about 2995.4405352135. The cubic root of 8972664 is about 207.7975717959.

The spelling of 8972664 in words is "eight million, nine hundred seventy-two thousand, six hundred sixty-four".