13388591 has 8 divisors (see below), whose sum is σ = 13780368. Its totient is φ = 13000000.

The previous prime is 13388581. The next prime is 13388629. The reversal of 13388591 is 19588331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13388591 - 2¹⁸ = 13126447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13388581) 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 in 7 ways as a sum of consecutive naturals, for example, 9641 + ... + 10941.

It is an arithmetic number, because the mean of its divisors is an integer number (1722546).

Almost surely, 2^13388591 is an apocalyptic number.

13388591 is a deficient number, since it is larger than the sum of its proper divisors (391777).

13388591 is a wasteful number, since it uses less digits than its factorization.

13388591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593.

The product of its digits is 25920, while the sum is 38.

The square root of 13388591 is about 3659.0423610557. The cubic root of 13388591 is about 237.4533448522.

The spelling of 13388591 in words is "thirteen million, three hundred eighty-eight thousand, five hundred ninety-one".