13089679 has 4 divisors (see below), whose sum is σ = 13132080. Its totient is φ = 13047280.

The previous prime is 13089667. The next prime is 13089709. The reversal of 13089679 is 97698031.

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

It is a cyclic number.

It is not a de Polignac number, because 13089679 - 2⁵ = 13089647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13089649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20734 + ... + 21355.

It is an arithmetic number, because the mean of its divisors is an integer number (3283020).

Almost surely, 2^13089679 is an apocalyptic number.

13089679 is a deficient number, since it is larger than the sum of its proper divisors (42401).

13089679 is an equidigital number, since it uses as much as digits as its factorization.

13089679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42400.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 13089679 is about 3617.9661413562. The cubic root of 13089679 is about 235.6729106092.

The spelling of 13089679 in words is "thirteen million, eighty-nine thousand, six hundred seventy-nine".