13972579 has 2 divisors, whose sum is σ = 13972580. Its totient is φ = 13972578.

The previous prime is 13972573. The next prime is 13972597. The reversal of 13972579 is 97527931.

13972579 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (13972597) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13972579 - 2⁷ = 13972451 is a prime.

It is a super-2 number, since 2×13972579² = 390465927822482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13972573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6986289 + 6986290.

It is an arithmetic number, because the mean of its divisors is an integer number (6986290).

Almost surely, 2^13972579 is an apocalyptic number.

13972579 is a deficient number, since it is larger than the sum of its proper divisors (1).

13972579 is an equidigital number, since it uses as much as digits as its factorization.

13972579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 119070, while the sum is 43.

The square root of 13972579 is about 3737.9913055009. The cubic root of 13972579 is about 240.8567699747.

The spelling of 13972579 in words is "thirteen million, nine hundred seventy-two thousand, five hundred seventy-nine".