872392 has 8 divisors (see below), whose sum is σ = 1635750. Its totient is φ = 436192.

The previous prime is 872387. The next prime is 872393. The reversal of 872392 is 293278.

It can be written as a sum of positive squares in only one way, i.e., 872356 + 36 = 934^2 + 6^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×872392² = 1522135603328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (872393) by changing a digit.

872392 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 as a sum of consecutive naturals, namely, 54517 + ... + 54532.

2⁸⁷²³⁹² is an apocalyptic number.

It is an amenable number.

872392 is a deficient number, since it is larger than the sum of its proper divisors (763358).

872392 is a wasteful number, since it uses less digits than its factorization.

872392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109055 (or 109051 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 872392 is about 934.0192717498. The cubic root of 872392 is about 95.5514374365.

The spelling of 872392 in words is "eight hundred seventy-two thousand, three hundred ninety-two".