13389579 has 24 divisors (see below), whose sum is σ = 22211072. Its totient is φ = 7614000.

The previous prime is 13389577. The next prime is 13389599. The reversal of 13389579 is 97598331.

It is a happy number.

13389579 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13389579 - 2¹ = 13389577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13389577) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17454 + ... + 18204.

Almost surely, 2^13389579 is an apocalyptic number.

13389579 is a deficient number, since it is larger than the sum of its proper divisors (8821493).

13389579 is a wasteful number, since it uses less digits than its factorization.

13389579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047 (or 1044 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 13389579 is about 3659.1773665675. The cubic root of 13389579 is about 237.4591855996.

The spelling of 13389579 in words is "thirteen million, three hundred eighty-nine thousand, five hundred seventy-nine".