13904975 has 18 divisors (see below), whose sum is σ = 20058984. Its totient is φ = 9534000.

The previous prime is 13904959. The next prime is 13904981. The reversal of 13904975 is 57940931.

It is a happy number.

13904975 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13904975 - 2⁴ = 13904959 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 17 ways as a sum of consecutive naturals, for example, 4451 + ... + 6900.

It is an arithmetic number, because the mean of its divisors is an integer number (1114388).

Almost surely, 2^13904975 is an apocalyptic number.

13904975 is a deficient number, since it is larger than the sum of its proper divisors (6154009).

13904975 is a wasteful number, since it uses less digits than its factorization.

13904975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11375 (or 11363 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 13904975 is about 3728.9375162370. The cubic root of 13904975 is about 240.4676933277.

The spelling of 13904975 in words is "thirteen million, nine hundred four thousand, nine hundred seventy-five".