872056 has 16 divisors (see below), whose sum is σ = 1662840. Its totient is φ = 428640.

The previous prime is 872041. The next prime is 872057. The reversal of 872056 is 650278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872057) by changing a digit.

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, 406 + ... + 1381.

2⁸⁷²⁰⁵⁶ is an apocalyptic number.

It is an amenable number.

872056 is a deficient number, since it is larger than the sum of its proper divisors (790784).

872056 is a wasteful number, since it uses less digits than its factorization.

872056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854 (or 1850 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 872056 is about 933.8393866185. The cubic root of 872056 is about 95.5391687141.

The spelling of 872056 in words is "eight hundred seventy-two thousand, fifty-six".