13389391 has 2 divisors, whose sum is σ = 13389392. Its totient is φ = 13389390.

The previous prime is 13389377. The next prime is 13389403. The reversal of 13389391 is 19398331.

13389391 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13389391 - 2⁷ = 13389263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13389391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13389331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6694695 + 6694696.

It is an arithmetic number, because the mean of its divisors is an integer number (6694696).

Almost surely, 2^13389391 is an apocalyptic number.

13389391 is a deficient number, since it is larger than the sum of its proper divisors (1).

13389391 is an equidigital number, since it uses as much as digits as its factorization.

13389391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17496, while the sum is 37.

The square root of 13389391 is about 3659.1516776433. The cubic root of 13389391 is about 237.4580742244.

The spelling of 13389391 in words is "thirteen million, three hundred eighty-nine thousand, three hundred ninety-one".