972172 has 12 divisors (see below), whose sum is σ = 1708560. Its totient is φ = 484016.

The previous prime is 972163. The next prime is 972197. The reversal of 972172 is 271279.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 972172.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1098 + ... + 1774.

It is an arithmetic number, because the mean of its divisors is an integer number (142380).

2⁹⁷²¹⁷² is an apocalyptic number.

It is an amenable number.

972172 is a deficient number, since it is larger than the sum of its proper divisors (736388).

972172 is a wasteful number, since it uses less digits than its factorization.

972172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040 (or 1038 counting only the distinct ones).

The product of its digits is 1764, while the sum is 28.

The square root of 972172 is about 985.9878295395. The cubic root of 972172 is about 99.0636600388.

The spelling of 972172 in words is "nine hundred seventy-two thousand, one hundred seventy-two".