13064391 has 12 divisors (see below), whose sum is σ = 19691568. Its totient is φ = 8330784.

The previous prime is 13064377. The next prime is 13064393. The reversal of 13064391 is 19346031.

13064391 is a `hidden beast` number, since 13 + 0 + 643 + 9 + 1 = 666.

It is not a de Polignac number, because 13064391 - 2⁶ = 13064327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13064393) 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 11 ways as a sum of consecutive naturals, for example, 31350 + ... + 31763.

It is an arithmetic number, because the mean of its divisors is an integer number (1640964).

Almost surely, 2^13064391 is an apocalyptic number.

13064391 is a deficient number, since it is larger than the sum of its proper divisors (6627177).

13064391 is a wasteful number, since it uses less digits than its factorization.

13064391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63142 (or 63139 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 13064391 is about 3614.4696706433. The cubic root of 13064391 is about 235.5210469783.

The spelling of 13064391 in words is "thirteen million, sixty-four thousand, three hundred ninety-one".