13996379 has 2 divisors, whose sum is σ = 13996380. Its totient is φ = 13996378.

The previous prime is 13996343. The next prime is 13996391. The reversal of 13996379 is 97369931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13996379 - 2⁸ = 13996123 is a prime.

It is a super-2 number, since 2×13996379² = 391797250223282, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (13996309) 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, 6998189 + 6998190.

It is an arithmetic number, because the mean of its divisors is an integer number (6998190).

Almost surely, 2^13996379 is an apocalyptic number.

13996379 is a deficient number, since it is larger than the sum of its proper divisors (1).

13996379 is an equidigital number, since it uses as much as digits as its factorization.

13996379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 275562, while the sum is 47.

The square root of 13996379 is about 3741.1734790036. The cubic root of 13996379 is about 240.9934457565.

The spelling of 13996379 in words is "thirteen million, nine hundred ninety-six thousand, three hundred seventy-nine".