13681711 has 4 divisors (see below), whose sum is σ = 14276592. Its totient is φ = 13086832.

The previous prime is 13681709. The next prime is 13681721. The reversal of 13681711 is 11718631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13681711 - 2¹ = 13681709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13681711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13681721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297406 + ... + 297451.

It is an arithmetic number, because the mean of its divisors is an integer number (3569148).

Almost surely, 2^13681711 is an apocalyptic number.

13681711 is a deficient number, since it is larger than the sum of its proper divisors (594881).

13681711 is an equidigital number, since it uses as much as digits as its factorization.

13681711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594880.

The product of its digits is 1008, while the sum is 28.

The square root of 13681711 is about 3698.8796952591. The cubic root of 13681711 is about 239.1737268545.

The spelling of 13681711 in words is "thirteen million, six hundred eighty-one thousand, seven hundred eleven".