13857668 has 24 divisors (see below), whose sum is σ = 27022464. Its totient is φ = 6164000.

The previous prime is 13857667. The next prime is 13857691. The reversal of 13857668 is 86675831.

13857668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (13857667) 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, 1283 + ... + 5418.

It is an arithmetic number, because the mean of its divisors is an integer number (1125936).

Almost surely, 2^13857668 is an apocalyptic number.

It is an amenable number.

13857668 is a deficient number, since it is larger than the sum of its proper divisors (13164796).

13857668 is a wasteful number, since it uses less digits than its factorization.

13857668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6763 (or 6761 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 13857668 is about 3722.5888840967. The cubic root of 13857668 is about 240.1946800023.

The spelling of 13857668 in words is "thirteen million, eight hundred fifty-seven thousand, six hundred sixty-eight".