13910993 has 2 divisors, whose sum is σ = 13910994. Its totient is φ = 13910992.

The previous prime is 13910977. The next prime is 13911011. The reversal of 13910993 is 39901931.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7795264 + 6115729 = 2792^2 + 2473^2 .

It is a cyclic number.

It is not a de Polignac number, because 13910993 - 2⁴ = 13910977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13910293) 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, 6955496 + 6955497.

It is an arithmetic number, because the mean of its divisors is an integer number (6955497).

Almost surely, 2^13910993 is an apocalyptic number.

It is an amenable number.

13910993 is a deficient number, since it is larger than the sum of its proper divisors (1).

13910993 is an equidigital number, since it uses as much as digits as its factorization.

13910993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6561, while the sum is 35.

The square root of 13910993 is about 3729.7443612130. The cubic root of 13910993 is about 240.5023793749.

The spelling of 13910993 in words is "thirteen million, nine hundred ten thousand, nine hundred ninety-three".