13975739 has 2 divisors, whose sum is σ = 13975740. Its totient is φ = 13975738.

The previous prime is 13975733. The next prime is 13975757. The reversal of 13975739 is 93757931.

13975739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13975739 - 2⁸ = 13975483 is a prime.

It is a super-2 number, since 2×13975739² = 390642561192242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13975739.

It is not a weakly prime, because it can be changed into another prime (13975733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6987869 + 6987870.

It is an arithmetic number, because the mean of its divisors is an integer number (6987870).

Almost surely, 2^13975739 is an apocalyptic number.

13975739 is a deficient number, since it is larger than the sum of its proper divisors (1).

13975739 is an equidigital number, since it uses as much as digits as its factorization.

13975739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 178605, while the sum is 44.

The square root of 13975739 is about 3738.4139685166. The cubic root of 13975739 is about 240.8749257741.

The spelling of 13975739 in words is "thirteen million, nine hundred seventy-five thousand, seven hundred thirty-nine".