872881 has 4 divisors (see below), whose sum is σ = 874852. Its totient is φ = 870912.

The previous prime is 872863. The next prime is 872923. The reversal of 872881 is 188278.

872881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 665856 + 207025 = 816^2 + 455^2 .

It is a cyclic number.

It is not a de Polignac number, because 872881 - 2⁹ = 872369 is a prime.

It is a super-2 number, since 2×872881² = 1523842480322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25 + ... + 1321.

It is an arithmetic number, because the mean of its divisors is an integer number (218713).

2⁸⁷²⁸⁸¹ is an apocalyptic number.

It is an amenable number.

872881 is a deficient number, since it is larger than the sum of its proper divisors (1971).

872881 is a wasteful number, since it uses less digits than its factorization.

872881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970.

The product of its digits is 7168, while the sum is 34.

The square root of 872881 is about 934.2810069781. The cubic root of 872881 is about 95.5692871819.

The spelling of 872881 in words is "eight hundred seventy-two thousand, eight hundred eighty-one".