13979874 has 8 divisors (see below), whose sum is σ = 27959760. Its totient is φ = 4659956.

The previous prime is 13979857. The next prime is 13979921. The reversal of 13979874 is 47897931.

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

13979874 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1164984 + ... + 1164995.

It is an arithmetic number, because the mean of its divisors is an integer number (3494970).

Almost surely, 2^13979874 is an apocalyptic number.

13979874 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13979874 is a wasteful number, since it uses less digits than its factorization.

13979874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329984.

The product of its digits is 381024, while the sum is 48.

The square root of 13979874 is about 3738.9669696321. The cubic root of 13979874 is about 240.8986793088.

The spelling of 13979874 in words is "thirteen million, nine hundred seventy-nine thousand, eight hundred seventy-four".