872871 has 16 divisors (see below), whose sum is σ = 1228800. Its totient is φ = 550368.

The previous prime is 872863. The next prime is 872923. The reversal of 872871 is 178278.

It is not a de Polignac number, because 872871 - 2³ = 872863 is a prime.

872871 is a modest number, since divided by 2871 gives 87 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872071) 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, 6810 + ... + 6936.

It is an arithmetic number, because the mean of its divisors is an integer number (76800).

2⁸⁷²⁸⁷¹ is an apocalyptic number.

872871 is a deficient number, since it is larger than the sum of its proper divisors (355929).

872871 is a wasteful number, since it uses less digits than its factorization.

872871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238.

The product of its digits is 6272, while the sum is 33.

The square root of 872871 is about 934.2756552538. The cubic root of 872871 is about 95.5689222232.

The spelling of 872871 in words is "eight hundred seventy-two thousand, eight hundred seventy-one".