13089879 has 24 divisors (see below), whose sum is σ = 21715200. Its totient is φ = 7514640.

The previous prime is 13089863. The next prime is 13089889. The reversal of 13089879 is 97898031.

It is not a de Polignac number, because 13089879 - 2⁴ = 13089863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13089889) 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, 1599 + ... + 5360.

It is an arithmetic number, because the mean of its divisors is an integer number (904800).

Almost surely, 2^13089879 is an apocalyptic number.

13089879 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

13089879 is a deficient number, since it is larger than the sum of its proper divisors (8625321).

13089879 is a wasteful number, since it uses less digits than its factorization.

13089879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6995 (or 6992 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 13089879 is about 3617.9937810892. The cubic root of 13089879 is about 235.6741109020.

Adding to 13089879 its sum of digits (45), we get a square (13089924 = 3618²).

It can be divided in two parts, 130 and 89879, that added together give a palindrome (90009).

The spelling of 13089879 in words is "thirteen million, eighty-nine thousand, eight hundred seventy-nine".