13908725 has 12 divisors (see below), whose sum is σ = 17457216. Its totient is φ = 10991280.

The previous prime is 13908709. The next prime is 13908751. The reversal of 13908725 is 52780931.

It is not a de Polignac number, because 13908725 - 2⁴ = 13908709 is a prime.

It is a super-2 number, since 2×13908725² = 386905262251250, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 1277 + ... + 5426.

It is an arithmetic number, because the mean of its divisors is an integer number (1454768).

Almost surely, 2^13908725 is an apocalyptic number.

It is an amenable number.

13908725 is a deficient number, since it is larger than the sum of its proper divisors (3548491).

13908725 is an equidigital number, since it uses as much as digits as its factorization.

13908725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6796 (or 6791 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 13908725 is about 3729.4403065339. The cubic root of 13908725 is about 240.4893084402.

The spelling of 13908725 in words is "thirteen million, nine hundred eight thousand, seven hundred twenty-five".