872539 has 8 divisors (see below), whose sum is σ = 903312. Its totient is φ = 842400.

The previous prime is 872533. The next prime is 872549. The reversal of 872539 is 935278.

872539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 872539 - 2⁷ = 872411 is a prime.

It is a super-2 number, since 2×872539² = 1522648613042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5272 + ... + 5434.

It is an arithmetic number, because the mean of its divisors is an integer number (112914).

2⁸⁷²⁵³⁹ is an apocalyptic number.

872539 is a deficient number, since it is larger than the sum of its proper divisors (30773).

872539 is a wasteful number, since it uses less digits than its factorization.

872539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317.

The product of its digits is 15120, while the sum is 34.

The square root of 872539 is about 934.0979606016. The cubic root of 872539 is about 95.5568040119.

The spelling of 872539 in words is "eight hundred seventy-two thousand, five hundred thirty-nine".