13957711 has 4 divisors (see below), whose sum is σ = 14564592. Its totient is φ = 13350832.

The previous prime is 13957703. The next prime is 13957721. The reversal of 13957711 is 11775931.

13957711 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11775931 = 23 ⋅511997.

It is a cyclic number.

It is not a de Polignac number, because 13957711 - 2³ = 13957703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13957721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303406 + ... + 303451.

It is an arithmetic number, because the mean of its divisors is an integer number (3641148).

Almost surely, 2^13957711 is an apocalyptic number.

13957711 is a deficient number, since it is larger than the sum of its proper divisors (606881).

13957711 is an equidigital number, since it uses as much as digits as its factorization.

13957711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606880.

The product of its digits is 6615, while the sum is 34.

The square root of 13957711 is about 3736.0020074941. The cubic root of 13957711 is about 240.7713090304.

The spelling of 13957711 in words is "thirteen million, nine hundred fifty-seven thousand, seven hundred eleven".