8631172 has 36 divisors (see below), whose sum is σ = 17595900. Its totient is φ = 3688960.

The previous prime is 8631167. The next prime is 8631191. The reversal of 8631172 is 2711368.

It can be written as a sum of positive squares in 2 ways, for example, as 7322436 + 1308736 = 2706^2 + 1144^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8631172.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7704 + ... + 8752.

It is an arithmetic number, because the mean of its divisors is an integer number (488775).

Almost surely, 2^8631172 is an apocalyptic number.

It is an amenable number.

8631172 is an abundant number, since it is smaller than the sum of its proper divisors (8964728).

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

8631172 is a wasteful number, since it uses less digits than its factorization.

8631172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092 (or 1079 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 8631172 is about 2937.8856342615. The cubic root of 8631172 is about 205.1272024347.

The spelling of 8631172 in words is "eight million, six hundred thirty-one thousand, one hundred seventy-two".