931072172 has 12 divisors (see below), whose sum is σ = 1639755600. Its totient is φ = 462570576.

The previous prime is 931072169. The next prime is 931072183. The reversal of 931072172 is 271270139.

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 3 ways as a sum of consecutive naturals, for example, 740672 + ... + 741927.

It is an arithmetic number, because the mean of its divisors is an integer number (136646300).

Almost surely, 2^931072172 is an apocalyptic number.

It is an amenable number.

931072172 is a deficient number, since it is larger than the sum of its proper divisors (708683428).

931072172 is a wasteful number, since it uses less digits than its factorization.

931072172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482760 (or 1482758 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 931072172 is about 30513.4752527469. The cubic root of 931072172 is about 976.4749700972.

The spelling of 931072172 in words is "nine hundred thirty-one million, seventy-two thousand, one hundred seventy-two".