979239 has 8 divisors (see below), whose sum is σ = 1336192. Its totient is φ = 637560.

The previous prime is 979229. The next prime is 979261. The reversal of 979239 is 932979.

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

It is not a de Polignac number, because 979239 - 2⁵ = 979207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 979197 and 979206.

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 979239.

It is not an unprimeable number, because it can be changed into a prime (979219) 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, 3667 + ... + 3924.

It is an arithmetic number, because the mean of its divisors is an integer number (167024).

2⁹⁷⁹²³⁹ is an apocalyptic number.

979239 is a deficient number, since it is larger than the sum of its proper divisors (356953).

979239 is a wasteful number, since it uses less digits than its factorization.

979239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7637.

The product of its digits is 30618, while the sum is 39.

The square root of 979239 is about 989.5650559716. The cubic root of 979239 is about 99.3031215520.

The spelling of 979239 in words is "nine hundred seventy-nine thousand, two hundred thirty-nine".