872665964 has 12 divisors (see below), whose sum is σ = 1616998824. Its totient is φ = 410666304.

The previous prime is 872665961. The next prime is 872665987. The reversal of 872665964 is 469566278.

It is not an unprimeable number, because it can be changed into a prime (872665961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6416594 + ... + 6416729.

It is an arithmetic number, because the mean of its divisors is an integer number (134749902).

Almost surely, 2^872665964 is an apocalyptic number.

It is an amenable number.

872665964 is a deficient number, since it is larger than the sum of its proper divisors (744332860).

872665964 is a wasteful number, since it uses less digits than its factorization.

872665964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12833344 (or 12833342 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 53.

The square root of 872665964 is about 29540.9201617011. The cubic root of 872665964 is about 955.6143864165.

The spelling of 872665964 in words is "eight hundred seventy-two million, six hundred sixty-five thousand, nine hundred sixty-four".