873156 has 12 divisors (see below), whose sum is σ = 2037392. Its totient is φ = 291048.

The previous prime is 873139. The next prime is 873157. The reversal of 873156 is 651378.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (873157) by changing a digit.

873156 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, 36370 + ... + 36393.

2⁸⁷³¹⁵⁶ is an apocalyptic number.

It is an amenable number.

873156 is an abundant number, since it is smaller than the sum of its proper divisors (1164236).

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

873156 is a wasteful number, since it uses less digits than its factorization.

873156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72770 (or 72768 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 873156 is about 934.4281673837. The cubic root of 873156 is about 95.5793224538.

The spelling of 873156 in words is "eight hundred seventy-three thousand, one hundred fifty-six".