872156 has 12 divisors (see below), whose sum is σ = 1533168. Its totient is φ = 434112.

The previous prime is 872149. The next prime is 872159. The reversal of 872156 is 651278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872159) by changing a digit.

872156 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, 1025 + ... + 1671.

It is an arithmetic number, because the mean of its divisors is an integer number (127764).

2⁸⁷²¹⁵⁶ is an apocalyptic number.

It is an amenable number.

872156 is a deficient number, since it is larger than the sum of its proper divisors (661012).

872156 is a wasteful number, since it uses less digits than its factorization.

872156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988 (or 986 counting only the distinct ones).

The product of its digits is 3360, while the sum is 29.

The square root of 872156 is about 933.8929274815. The cubic root of 872156 is about 95.5428204489.

The spelling of 872156 in words is "eight hundred seventy-two thousand, one hundred fifty-six".