872655 has 16 divisors (see below), whose sum is σ = 1595904. Its totient is φ = 398880.

The previous prime is 872647. The next prime is 872657. The reversal of 872655 is 556278.

It is a happy number.

It is not a de Polignac number, because 872655 - 2³ = 872647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872657) 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 15 ways as a sum of consecutive naturals, for example, 4051 + ... + 4260.

It is an arithmetic number, because the mean of its divisors is an integer number (99744).

2⁸⁷²⁶⁵⁵ is an apocalyptic number.

872655 is a deficient number, since it is larger than the sum of its proper divisors (723249).

872655 is a wasteful number, since it uses less digits than its factorization.

872655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8326.

The product of its digits is 16800, while the sum is 33.

The square root of 872655 is about 934.1600505267. The cubic root of 872655 is about 95.5610384351.

The spelling of 872655 in words is "eight hundred seventy-two thousand, six hundred fifty-five".