872665204 has 6 divisors (see below), whose sum is σ = 1527164114. Its totient is φ = 436332600.

The previous prime is 872665181. The next prime is 872665229. The reversal of 872665204 is 402566278.

It can be written as a sum of positive squares in only one way, i.e., 803609104 + 69056100 = 28348^2 + 8310^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109083147 + ... + 109083154.

Almost surely, 2^872665204 is an apocalyptic number.

It is an amenable number.

872665204 is a deficient number, since it is larger than the sum of its proper divisors (654498910).

872665204 is a wasteful number, since it uses less digits than its factorization.

872665204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218166305 (or 218166303 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 872665204 is about 29540.9072981857. The cubic root of 872665204 is about 955.6141090033.

The spelling of 872665204 in words is "eight hundred seventy-two million, six hundred sixty-five thousand, two hundred four".