872579 has 4 divisors (see below), whose sum is σ = 883176. Its totient is φ = 861984.

The previous prime is 872567. The next prime is 872587. The reversal of 872579 is 975278.

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

It is a cyclic number.

It is not a de Polignac number, because 872579 - 2⁴ = 872563 is a prime.

It is a super-2 number, since 2×872579² = 1522788222482, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 872579.

It is not an unprimeable number, because it can be changed into a prime (872549) 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, 5174 + ... + 5339.

It is an arithmetic number, because the mean of its divisors is an integer number (220794).

2⁸⁷²⁵⁷⁹ is an apocalyptic number.

872579 is a deficient number, since it is larger than the sum of its proper divisors (10597).

872579 is a wasteful number, since it uses less digits than its factorization.

872579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10596.

The product of its digits is 35280, while the sum is 38.

The square root of 872579 is about 934.1193713868. The cubic root of 872579 is about 95.5582642002.

The spelling of 872579 in words is "eight hundred seventy-two thousand, five hundred seventy-nine".