13931327 has 2 divisors, whose sum is σ = 13931328. Its totient is φ = 13931326.

The previous prime is 13931299. The next prime is 13931329. The reversal of 13931327 is 72313931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13931327 - 2¹² = 13927231 is a prime.

Together with 13931329, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13931327.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13931329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6965663 + 6965664.

It is an arithmetic number, because the mean of its divisors is an integer number (6965664).

Almost surely, 2^13931327 is an apocalyptic number.

13931327 is a deficient number, since it is larger than the sum of its proper divisors (1).

13931327 is an equidigital number, since it uses as much as digits as its factorization.

13931327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402, while the sum is 29.

The square root of 13931327 is about 3732.4692898938. The cubic root of 13931327 is about 240.6195048388.

The spelling of 13931327 in words is "thirteen million, nine hundred thirty-one thousand, three hundred twenty-seven".