13868665 has 8 divisors (see below), whose sum is σ = 16891200. Its totient is φ = 10929072.

The previous prime is 13868653. The next prime is 13868671. The reversal of 13868665 is 56686831.

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 13868665 - 2⁵ = 13868633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20365 + ... + 21034.

It is an arithmetic number, because the mean of its divisors is an integer number (2111400).

Almost surely, 2^13868665 is an apocalyptic number.

It is an amenable number.

13868665 is a deficient number, since it is larger than the sum of its proper divisors (3022535).

13868665 is an equidigital number, since it uses as much as digits as its factorization.

13868665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41471.

The product of its digits is 207360, while the sum is 43.

The square root of 13868665 is about 3724.0656546307. The cubic root of 13868665 is about 240.2582001292.

The spelling of 13868665 in words is "thirteen million, eight hundred sixty-eight thousand, six hundred sixty-five".