13959719 has 2 divisors, whose sum is σ = 13959720. Its totient is φ = 13959718.

The previous prime is 13959709. The next prime is 13959731. The reversal of 13959719 is 91795931.

It is a weak prime.

It is an emirp because it is prime and its reverse (91795931) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13959719 is a prime.

It is a super-2 number, since 2×13959719² = 389747509117922, which contains 22 as substring.

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 13959719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13959709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6979859 + 6979860.

It is an arithmetic number, because the mean of its divisors is an integer number (6979860).

Almost surely, 2^13959719 is an apocalyptic number.

13959719 is a deficient number, since it is larger than the sum of its proper divisors (1).

13959719 is an equidigital number, since it uses as much as digits as its factorization.

13959719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 76545, while the sum is 44.

The square root of 13959719 is about 3736.2707343018. The cubic root of 13959719 is about 240.7828545148.

The spelling of 13959719 in words is "thirteen million, nine hundred fifty-nine thousand, seven hundred nineteen".