872810 has 8 divisors (see below), whose sum is σ = 1571076. Its totient is φ = 349120.

The previous prime is 872791. The next prime is 872843. The reversal of 872810 is 18278.

872810 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 811801 + 61009 = 901^2 + 247^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×872810² = 1523594592200, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 872810.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 872810.

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, 43631 + ... + 43650.

2⁸⁷²⁸¹⁰ is an apocalyptic number.

872810 is a deficient number, since it is larger than the sum of its proper divisors (698266).

872810 is a wasteful number, since it uses less digits than its factorization.

872810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87288.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 872810 is about 934.2430090721. The cubic root of 872810 is about 95.5666959149.

The spelling of 872810 in words is "eight hundred seventy-two thousand, eight hundred ten".