13918657 has 8 divisors (see below), whose sum is σ = 14601600. Its totient is φ = 13242240.

The previous prime is 13918649. The next prime is 13918661. The reversal of 13918657 is 75681931.

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 13918657 - 2³ = 13918649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13918687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3057 + ... + 6097.

It is an arithmetic number, because the mean of its divisors is an integer number (1825200).

Almost surely, 2^13918657 is an apocalyptic number.

It is an amenable number.

13918657 is a deficient number, since it is larger than the sum of its proper divisors (682943).

13918657 is a wasteful number, since it uses less digits than its factorization.

13918657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3263.

The product of its digits is 45360, while the sum is 40.

The square root of 13918657 is about 3730.7716360024. The cubic root of 13918657 is about 240.5465380209.

The spelling of 13918657 in words is "thirteen million, nine hundred eighteen thousand, six hundred fifty-seven".