13979625 has 32 divisors (see below), whose sum is σ = 25384320. Its totient is φ = 6776000.

The previous prime is 13979597. The next prime is 13979629. The reversal of 13979625 is 52697931.

It is not a de Polignac number, because 13979625 - 2⁹ = 13979113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13979629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2431 + ... + 5819.

It is an arithmetic number, because the mean of its divisors is an integer number (793260).

Almost surely, 2^13979625 is an apocalyptic number.

13979625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13979625 is a deficient number, since it is larger than the sum of its proper divisors (11404695).

13979625 is a wasteful number, since it uses less digits than its factorization.

13979625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3418 (or 3408 counting only the distinct ones).

The product of its digits is 102060, while the sum is 42.

The square root of 13979625 is about 3738.9336715165. The cubic root of 13979625 is about 240.8972490592.

The spelling of 13979625 in words is "thirteen million, nine hundred seventy-nine thousand, six hundred twenty-five".