13425979 has 8 divisors (see below), whose sum is σ = 15366368. Its totient is φ = 11491200.

The previous prime is 13425977. The next prime is 13425991. The reversal of 13425979 is 97952431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13425979 - 2¹ = 13425977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13425977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7609 + ... + 9205.

It is an arithmetic number, because the mean of its divisors is an integer number (1920796).

Almost surely, 2^13425979 is an apocalyptic number.

13425979 is a deficient number, since it is larger than the sum of its proper divisors (1940389).

13425979 is a wasteful number, since it uses less digits than its factorization.

13425979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2805.

The product of its digits is 68040, while the sum is 40.

The square root of 13425979 is about 3664.1477863209. The cubic root of 13425979 is about 237.6741710398.

The spelling of 13425979 in words is "thirteen million, four hundred twenty-five thousand, nine hundred seventy-nine".