13104399 has 64 divisors (see below), whose sum is σ = 23887872. Its totient is φ = 6182400.

The previous prime is 13104389. The next prime is 13104437. The reversal of 13104399 is 99340131.

It is a Cunningham number, because it is equal to 3620²-1.

It is not a de Polignac number, because 13104399 - 2⁵ = 13104367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13104359) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 184534 + ... + 184604.

It is an arithmetic number, because the mean of its divisors is an integer number (373248).

Almost surely, 2^13104399 is an apocalyptic number.

13104399 is a deficient number, since it is larger than the sum of its proper divisors (10783473).

13104399 is a wasteful number, since it uses less digits than its factorization.

13104399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 13104399 is about 3619.9998618785. Note that the first 3 decimals coincide. The cubic root of 13104399 is about 235.7612195143.

The spelling of 13104399 in words is "thirteen million, one hundred four thousand, three hundred ninety-nine".