13078929 has 4 divisors (see below), whose sum is σ = 17438576. Its totient is φ = 8719284.

The previous prime is 13078907. The next prime is 13078999. The reversal of 13078929 is 92987031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13078929 - 2⁸ = 13078673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13078999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2179819 + ... + 2179824.

It is an arithmetic number, because the mean of its divisors is an integer number (4359644).

Almost surely, 2^13078929 is an apocalyptic number.

It is an amenable number.

13078929 is a deficient number, since it is larger than the sum of its proper divisors (4359647).

13078929 is an equidigital number, since it uses as much as digits as its factorization.

13078929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4359646.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 13078929 is about 3616.4801948856. The cubic root of 13078929 is about 235.6083768735.

The spelling of 13078929 in words is "thirteen million, seventy-eight thousand, nine hundred twenty-nine".