13979746 has 16 divisors (see below), whose sum is σ = 24222240. Its totient is φ = 5980480.

The previous prime is 13979743. The next prime is 13979753. The reversal of 13979746 is 64797931.

It is a junction number, because it is equal to n+sod(n) for n = 13979696 and 13979705.

It is not an unprimeable number, because it can be changed into a prime (13979741) 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, 18316 + ... + 19063.

It is an arithmetic number, because the mean of its divisors is an integer number (1513890).

Almost surely, 2^13979746 is an apocalyptic number.

13979746 is a deficient number, since it is larger than the sum of its proper divisors (10242494).

13979746 is a wasteful number, since it uses less digits than its factorization.

13979746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37409.

The product of its digits is 285768, while the sum is 46.

The square root of 13979746 is about 3738.9498525656. The cubic root of 13979746 is about 240.8979440822.

The spelling of 13979746 in words is "thirteen million, nine hundred seventy-nine thousand, seven hundred forty-six".