13768913 has 2 divisors, whose sum is σ = 13768914. Its totient is φ = 13768912.

The previous prime is 13768891. The next prime is 13768919. The reversal of 13768913 is 31986731.

13768913 is nontrivially palindromic in base 13.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11102224 + 2666689 = 3332^2 + 1633^2 .

It is a cyclic number.

It is not a de Polignac number, because 13768913 - 2⁶ = 13768849 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13768919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6884456 + 6884457.

It is an arithmetic number, because the mean of its divisors is an integer number (6884457).

Almost surely, 2^13768913 is an apocalyptic number.

It is an amenable number.

13768913 is a deficient number, since it is larger than the sum of its proper divisors (1).

13768913 is an equidigital number, since it uses as much as digits as its factorization.

13768913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 38.

The square root of 13768913 is about 3710.6485955962. The cubic root of 13768913 is about 239.6807851034.

The spelling of 13768913 in words is "thirteen million, seven hundred sixty-eight thousand, nine hundred thirteen".