971686872 has 48 divisors (see below), whose sum is σ = 2834089440. Its totient is φ = 298980288.

The previous prime is 971686831. The next prime is 971686897. The reversal of 971686872 is 278686179.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 518128 + ... + 519999.

It is an arithmetic number, because the mean of its divisors is an integer number (59043530).

Almost surely, 2^971686872 is an apocalyptic number.

It is an amenable number.

971686872 is an abundant number, since it is smaller than the sum of its proper divisors (1862402568).

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

971686872 is a wasteful number, since it uses less digits than its factorization.

971686872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038152 (or 1038145 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The square root of 971686872 is about 31171.8923390929. The cubic root of 971686872 is about 990.4717922691.

The spelling of 971686872 in words is "nine hundred seventy-one million, six hundred eighty-six thousand, eight hundred seventy-two".