13969079 has 2 divisors, whose sum is σ = 13969080. Its totient is φ = 13969078.

The previous prime is 13969063. The next prime is 13969093. The reversal of 13969079 is 97096931.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (97096931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13969079 - 2⁴ = 13969063 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13969099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6984539 + 6984540.

It is an arithmetic number, because the mean of its divisors is an integer number (6984540).

Almost surely, 2^13969079 is an apocalyptic number.

13969079 is a deficient number, since it is larger than the sum of its proper divisors (1).

13969079 is an equidigital number, since it uses as much as digits as its factorization.

13969079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91854, while the sum is 44.

The square root of 13969079 is about 3737.5231102964. The cubic root of 13969079 is about 240.8366575080.

The spelling of 13969079 in words is "thirteen million, nine hundred sixty-nine thousand, seventy-nine".