13939375 has 10 divisors (see below), whose sum is σ = 17419424. Its totient is φ = 11151000.

The previous prime is 13939363. The next prime is 13939381. The reversal of 13939375 is 57393931.

It is a de Polignac number, because none of the positive numbers 2^k-13939375 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10527 + ... + 11776.

Almost surely, 2^13939375 is an apocalyptic number.

13939375 is a deficient number, since it is larger than the sum of its proper divisors (3480049).

13939375 is an frugal number, since it uses more digits than its factorization.

13939375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22323 (or 22308 counting only the distinct ones).

The product of its digits is 76545, while the sum is 40.

The square root of 13939375 is about 3733.5472408957. The cubic root of 13939375 is about 240.6658304806.

The spelling of 13939375 in words is "thirteen million, nine hundred thirty-nine thousand, three hundred seventy-five".