13957769 has 8 divisors (see below), whose sum is σ = 16383168. Its totient is φ = 11640240.

The previous prime is 13957763. The next prime is 13957789. The reversal of 13957769 is 96775931.

It is a happy number.

13957769 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13957769 - 2⁸ = 13957513 is a prime.

It is a super-2 number, since 2×13957769² = 389638630914722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13957763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26687 + ... + 27204.

It is an arithmetic number, because the mean of its divisors is an integer number (2047896).

Almost surely, 2^13957769 is an apocalyptic number.

It is an amenable number.

13957769 is a deficient number, since it is larger than the sum of its proper divisors (2425399).

13957769 is an equidigital number, since it uses as much as digits as its factorization.

13957769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53935.

The product of its digits is 357210, while the sum is 47.

The square root of 13957769 is about 3736.0097697945. The cubic root of 13957769 is about 240.7716425310.

The spelling of 13957769 in words is "thirteen million, nine hundred fifty-seven thousand, seven hundred sixty-nine".