13573979 has 8 divisors (see below), whose sum is σ = 14214912. Its totient is φ = 12937320.

The previous prime is 13573951. The next prime is 13573981. The reversal of 13573979 is 97937531.

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 13573979 - 2⁸ = 13573723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13573949) 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, 6722 + ... + 8504.

It is an arithmetic number, because the mean of its divisors is an integer number (1776864).

Almost surely, 2^13573979 is an apocalyptic number.

13573979 is a deficient number, since it is larger than the sum of its proper divisors (640933).

13573979 is a wasteful number, since it uses less digits than its factorization.

13573979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2137.

The product of its digits is 178605, while the sum is 44.

The square root of 13573979 is about 3684.2881266264. The cubic root of 13573979 is about 238.5443077308.

The spelling of 13573979 in words is "thirteen million, five hundred seventy-three thousand, nine hundred seventy-nine".