872558 has 4 divisors (see below), whose sum is σ = 1308840. Its totient is φ = 436278.

The previous prime is 872549. The next prime is 872561. The reversal of 872558 is 855278.

872558 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 is a super-2 number, since 2×872558² = 1522714926728, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 872558.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 218138 + ... + 218141.

It is an arithmetic number, because the mean of its divisors is an integer number (327210).

2⁸⁷²⁵⁵⁸ is an apocalyptic number.

872558 is a deficient number, since it is larger than the sum of its proper divisors (436282).

872558 is a wasteful number, since it uses less digits than its factorization.

872558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436281.

The product of its digits is 22400, while the sum is 35.

The square root of 872558 is about 934.1081307857. The cubic root of 872558 is about 95.5574976069.

The spelling of 872558 in words is "eight hundred seventy-two thousand, five hundred fifty-eight".