13959679 has 2 divisors, whose sum is σ = 13959680. Its totient is φ = 13959678.

The previous prime is 13959677. The next prime is 13959683. The reversal of 13959679 is 97695931.

It is a weak prime.

It is an emirp because it is prime and its reverse (97695931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13959679 - 2¹ = 13959677 is a prime.

Together with 13959677, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13959677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6979839 + 6979840.

It is an arithmetic number, because the mean of its divisors is an integer number (6979840).

Almost surely, 2^13959679 is an apocalyptic number.

13959679 is a deficient number, since it is larger than the sum of its proper divisors (1).

13959679 is an equidigital number, since it uses as much as digits as its factorization.

13959679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 459270, while the sum is 49.

The square root of 13959679 is about 3736.2653813668. The cubic root of 13959679 is about 240.7826245359.

The spelling of 13959679 in words is "thirteen million, nine hundred fifty-nine thousand, six hundred seventy-nine".