13597391 has 2 divisors, whose sum is σ = 13597392. Its totient is φ = 13597390.

The previous prime is 13597357. The next prime is 13597411. The reversal of 13597391 is 19379531.

13597391 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 an emirp because it is prime and its reverse (19379531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13597391 - 2¹⁰ = 13596367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13597351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6798695 + 6798696.

It is an arithmetic number, because the mean of its divisors is an integer number (6798696).

Almost surely, 2^13597391 is an apocalyptic number.

13597391 is a deficient number, since it is larger than the sum of its proper divisors (1).

13597391 is an equidigital number, since it uses as much as digits as its factorization.

13597391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25515, while the sum is 38.

The square root of 13597391 is about 3687.4640337229. The cubic root of 13597391 is about 238.6813736953.

The spelling of 13597391 in words is "thirteen million, five hundred ninety-seven thousand, three hundred ninety-one".