13304689 has 2 divisors, whose sum is σ = 13304690. Its totient is φ = 13304688.

The previous prime is 13304653. The next prime is 13304717. The reversal of 13304689 is 98640331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9560464 + 3744225 = 3092^2 + 1935^2 .

It is an emirp because it is prime and its reverse (98640331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13304689 - 2⁷ = 13304561 is a prime.

It is not a weakly prime, because it can be changed into another prime (13304639) 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 as a sum of consecutive naturals, namely, 6652344 + 6652345.

It is an arithmetic number, because the mean of its divisors is an integer number (6652345).

Almost surely, 2^13304689 is an apocalyptic number.

It is an amenable number.

13304689 is a deficient number, since it is larger than the sum of its proper divisors (1).

13304689 is an equidigital number, since it uses as much as digits as its factorization.

13304689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 13304689 is about 3647.5593209707. The cubic root of 13304689 is about 236.9562904906.

The spelling of 13304689 in words is "thirteen million, three hundred four thousand, six hundred eighty-nine".