13713657 has 4 divisors (see below), whose sum is σ = 18284880. Its totient is φ = 9142436.

The previous prime is 13713647. The next prime is 13713659. The reversal of 13713657 is 75631731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13713657 - 2⁴ = 13713641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13713659) 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, 2285607 + ... + 2285612.

It is an arithmetic number, because the mean of its divisors is an integer number (4571220).

Almost surely, 2^13713657 is an apocalyptic number.

It is an amenable number.

13713657 is a deficient number, since it is larger than the sum of its proper divisors (4571223).

13713657 is an equidigital number, since it uses as much as digits as its factorization.

13713657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4571222.

The product of its digits is 13230, while the sum is 33.

The square root of 13713657 is about 3703.1955119869. The cubic root of 13713657 is about 239.3597344077.

The spelling of 13713657 in words is "thirteen million, seven hundred thirteen thousand, six hundred fifty-seven".