872931128 has 16 divisors (see below), whose sum is σ = 1637518680. Its totient is φ = 436259488.

The previous prime is 872931127. The next prime is 872931131. The reversal of 872931128 is 821139278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872931127) 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, 6950 + ... + 42357.

Almost surely, 2^872931128 is an apocalyptic number.

It is an amenable number.

872931128 is a deficient number, since it is larger than the sum of its proper divisors (764587552).

872931128 is a wasteful number, since it uses less digits than its factorization.

872931128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51526 (or 51522 counting only the distinct ones).

The product of its digits is 48384, while the sum is 41.

The square root of 872931128 is about 29545.4079003828. The cubic root of 872931128 is about 955.7111660485.

The spelling of 872931128 in words is "eight hundred seventy-two million, nine hundred thirty-one thousand, one hundred twenty-eight".