13397579 has 4 divisors (see below), whose sum is σ = 14428176. Its totient is φ = 12366984.

The previous prime is 13397567. The next prime is 13397591. The reversal of 13397579 is 97579331.

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

It is an interprime number because it is at equal distance from previous prime (13397567) and next prime (13397591).

It is a cyclic number.

It is not a de Polignac number, because 13397579 - 2⁴ = 13397563 is a prime.

It is a super-2 number, since 2×13397579² = 358990246122482, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (13397509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515279 + ... + 515304.

It is an arithmetic number, because the mean of its divisors is an integer number (3607044).

Almost surely, 2^13397579 is an apocalyptic number.

13397579 is a deficient number, since it is larger than the sum of its proper divisors (1030597).

13397579 is a wasteful number, since it uses less digits than its factorization.

13397579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030596.

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

The square root of 13397579 is about 3660.2703452068. The cubic root of 13397579 is about 237.5064685219.

The spelling of 13397579 in words is "thirteen million, three hundred ninety-seven thousand, five hundred seventy-nine".