13808911 has 2 divisors, whose sum is σ = 13808912. Its totient is φ = 13808910.

The previous prime is 13808909. The next prime is 13808917. The reversal of 13808911 is 11980831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13808911 - 2¹ = 13808909 is a prime.

Together with 13808909, 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 (13808917) 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, 6904455 + 6904456.

It is an arithmetic number, because the mean of its divisors is an integer number (6904456).

Almost surely, 2^13808911 is an apocalyptic number.

13808911 is a deficient number, since it is larger than the sum of its proper divisors (1).

13808911 is an equidigital number, since it uses as much as digits as its factorization.

13808911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 13808911 is about 3716.0343109288. The cubic root of 13808911 is about 239.9126476085.

The spelling of 13808911 in words is "thirteen million, eight hundred eight thousand, nine hundred eleven".