13957579 has 2 divisors, whose sum is σ = 13957580. Its totient is φ = 13957578.

The previous prime is 13957577. The next prime is 13957583. The reversal of 13957579 is 97575931.

It is a happy number.

13957579 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (97575931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13957579 - 2¹ = 13957577 is a prime.

Together with 13957577, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13957577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6978789 + 6978790.

It is an arithmetic number, because the mean of its divisors is an integer number (6978790).

Almost surely, 2^13957579 is an apocalyptic number.

13957579 is a deficient number, since it is larger than the sum of its proper divisors (1).

13957579 is an equidigital number, since it uses as much as digits as its factorization.

13957579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 297675, while the sum is 46.

The square root of 13957579 is about 3735.9843415089. The cubic root of 13957579 is about 240.7705500255.

The spelling of 13957579 in words is "thirteen million, nine hundred fifty-seven thousand, five hundred seventy-nine".