831172 has 12 divisors (see below), whose sum is σ = 1501696. Its totient is φ = 402120.

The previous prime is 831167. The next prime is 831191. The reversal of 831172 is 271138.

831172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

831172 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3228 + ... + 3475.

2⁸³¹¹⁷² is an apocalyptic number.

It is an amenable number.

831172 is a deficient number, since it is larger than the sum of its proper divisors (670524).

831172 is a wasteful number, since it uses less digits than its factorization.

831172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6738 (or 6736 counting only the distinct ones).

The product of its digits is 336, while the sum is 22.

The square root of 831172 is about 911.6863495742. The cubic root of 831172 is about 94.0221767504.

The spelling of 831172 in words is "eight hundred thirty-one thousand, one hundred seventy-two".