871508972 has 6 divisors (see below), whose sum is σ = 1525140708. Its totient is φ = 435754484.

The previous prime is 871508947. The next prime is 871508977. The reversal of 871508972 is 279805178.

It is not an unprimeable number, because it can be changed into a prime (871508977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108938618 + ... + 108938625.

It is an arithmetic number, because the mean of its divisors is an integer number (254190118).

Almost surely, 2^871508972 is an apocalyptic number.

It is an amenable number.

871508972 is a deficient number, since it is larger than the sum of its proper divisors (653631736).

871508972 is a wasteful number, since it uses less digits than its factorization.

871508972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217877247 (or 217877245 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 47.

The square root of 871508972 is about 29521.3307965613. The cubic root of 871508972 is about 955.1918776028.

The spelling of 871508972 in words is "eight hundred seventy-one million, five hundred eight thousand, nine hundred seventy-two".