13929894 has 40 divisors (see below), whose sum is σ = 34055208. Its totient is φ = 4220640.

The previous prime is 13929887. The next prime is 13929913. The reversal of 13929894 is 49892931.

13929894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2127 + ... + 5690.

Almost surely, 2^13929894 is an apocalyptic number.

13929894 is an abundant number, since it is smaller than the sum of its proper divisors (20125314).

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

13929894 is a wasteful number, since it uses less digits than its factorization.

13929894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7842 (or 7833 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 13929894 is about 3732.2773208860. The cubic root of 13929894 is about 240.6112543787.

The spelling of 13929894 in words is "thirteen million, nine hundred twenty-nine thousand, eight hundred ninety-four".