13923911 has 2 divisors, whose sum is σ = 13923912. Its totient is φ = 13923910.

The previous prime is 13923907. The next prime is 13923913. The reversal of 13923911 is 11932931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13923911 - 2² = 13923907 is a prime.

Together with 13923913, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13923913) 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, 6961955 + 6961956.

It is an arithmetic number, because the mean of its divisors is an integer number (6961956).

Almost surely, 2^13923911 is an apocalyptic number.

13923911 is a deficient number, since it is larger than the sum of its proper divisors (1).

13923911 is an equidigital number, since it uses as much as digits as its factorization.

13923911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1458, while the sum is 29.

The square root of 13923911 is about 3731.4757134410. The cubic root of 13923911 is about 240.5768012980.

The spelling of 13923911 in words is "thirteen million, nine hundred twenty-three thousand, nine hundred eleven".