13906668 has 24 divisors (see below), whose sum is σ = 32531968. Its totient is φ = 4623696.

The previous prime is 13906657. The next prime is 13906681. The reversal of 13906668 is 86660931.

It is a happy number.

13906668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 4305 + ... + 6807.

Almost surely, 2^13906668 is an apocalyptic number.

It is an amenable number.

13906668 is an abundant number, since it is smaller than the sum of its proper divisors (18625300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13906668 is a wasteful number, since it uses less digits than its factorization.

13906668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2973 (or 2971 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 13906668 is about 3729.1645176903. The cubic root of 13906668 is about 240.4774523116.

The spelling of 13906668 in words is "thirteen million, nine hundred six thousand, six hundred sixty-eight".