13392439 has 2 divisors, whose sum is σ = 13392440. Its totient is φ = 13392438.

The previous prime is 13392437. The next prime is 13392443. The reversal of 13392439 is 93429331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13392439 - 2¹ = 13392437 is a prime.

Together with 13392437, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13392433) 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, 6696219 + 6696220.

It is an arithmetic number, because the mean of its divisors is an integer number (6696220).

Almost surely, 2^13392439 is an apocalyptic number.

13392439 is a deficient number, since it is larger than the sum of its proper divisors (1).

13392439 is an equidigital number, since it uses as much as digits as its factorization.

13392439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17496, while the sum is 34.

The square root of 13392439 is about 3659.5681439208. The cubic root of 13392439 is about 237.4760914067.

It can be divided in two parts, 13392 and 439, that added together give a palindrome (13831).

The spelling of 13392439 in words is "thirteen million, three hundred ninety-two thousand, four hundred thirty-nine".