13979736 has 64 divisors (see below), whose sum is σ = 39506400. Its totient is φ = 4579200.

The previous prime is 13979723. The next prime is 13979741. The reversal of 13979736 is 63797931.

It is a junction number, because it is equal to n+sod(n) for n = 13979691 and 13979700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12646 + ... + 13706.

Almost surely, 2^13979736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13979736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19753200).

13979736 is an abundant number, since it is smaller than the sum of its proper divisors (25526664).

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

13979736 is a wasteful number, since it uses less digits than its factorization.

With its successor (13979737) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (1127).

13979736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137 (or 1127 counting only the distinct ones).

The product of its digits is 214326, while the sum is 45.

The square root of 13979736 is about 3738.9485152914. The cubic root of 13979736 is about 240.8978866425.

It can be divided in two parts, 1397973 and 6, that multiplied together give a palindrome (8387838).

The spelling of 13979736 in words is "thirteen million, nine hundred seventy-nine thousand, seven hundred thirty-six".