13819427 has 2 divisors, whose sum is σ = 13819428. Its totient is φ = 13819426.

The previous prime is 13819387. The next prime is 13819433. The reversal of 13819427 is 72491831.

It is a strong prime.

It is an emirp because it is prime and its reverse (72491831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13819427 - 2⁸ = 13819171 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13819447) 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, 6909713 + 6909714.

It is an arithmetic number, because the mean of its divisors is an integer number (6909714).

Almost surely, 2^13819427 is an apocalyptic number.

13819427 is a deficient number, since it is larger than the sum of its proper divisors (1).

13819427 is an equidigital number, since it uses as much as digits as its factorization.

13819427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 13819427 is about 3717.4489909076. The cubic root of 13819427 is about 239.9735329610.

The spelling of 13819427 in words is "thirteen million, eight hundred nineteen thousand, four hundred twenty-seven".