872816 has 20 divisors (see below), whose sum is σ = 1932912. Its totient is φ = 374016.

The previous prime is 872791. The next prime is 872843. The reversal of 872816 is 618278.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3785 + ... + 4008.

2⁸⁷²⁸¹⁶ is an apocalyptic number.

It is an amenable number.

872816 is an abundant number, since it is smaller than the sum of its proper divisors (1060096).

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

872816 is a wasteful number, since it uses less digits than its factorization.

872816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7808 (or 7802 counting only the distinct ones).

The product of its digits is 5376, while the sum is 32.

The square root of 872816 is about 934.2462202225. The cubic root of 872816 is about 95.5669149006.

The spelling of 872816 in words is "eight hundred seventy-two thousand, eight hundred sixteen".