13793891 has 2 divisors, whose sum is σ = 13793892. Its totient is φ = 13793890.

The previous prime is 13793887. The next prime is 13793909. The reversal of 13793891 is 19839731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13793891 - 2² = 13793887 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13793831) 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, 6896945 + 6896946.

It is an arithmetic number, because the mean of its divisors is an integer number (6896946).

Almost surely, 2^13793891 is an apocalyptic number.

13793891 is a deficient number, since it is larger than the sum of its proper divisors (1).

13793891 is an equidigital number, since it uses as much as digits as its factorization.

13793891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 41.

The square root of 13793891 is about 3714.0127894233. The cubic root of 13793891 is about 239.8256314476.

The spelling of 13793891 in words is "thirteen million, seven hundred ninety-three thousand, eight hundred ninety-one".