13904291 has 2 divisors, whose sum is σ = 13904292. Its totient is φ = 13904290.

The previous prime is 13904281. The next prime is 13904323. The reversal of 13904291 is 19240931.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13904291 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13904201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6952145 + 6952146.

It is an arithmetic number, because the mean of its divisors is an integer number (6952146).

Almost surely, 2^13904291 is an apocalyptic number.

13904291 is a deficient number, since it is larger than the sum of its proper divisors (1).

13904291 is an equidigital number, since it uses as much as digits as its factorization.

13904291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 13904291 is about 3728.8457999762. The cubic root of 13904291 is about 240.4637503121.

The spelling of 13904291 in words is "thirteen million, nine hundred four thousand, two hundred ninety-one".