13729916 has 12 divisors (see below), whose sum is σ = 24613680. Its totient is φ = 6697440.

The previous prime is 13729907. The next prime is 13729927. The reversal of 13729916 is 61992731.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13729916.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41696 + ... + 42023.

It is an arithmetic number, because the mean of its divisors is an integer number (2051140).

Almost surely, 2^13729916 is an apocalyptic number.

It is an amenable number.

13729916 is a deficient number, since it is larger than the sum of its proper divisors (10883764).

13729916 is a wasteful number, since it uses less digits than its factorization.

13729916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83764 (or 83762 counting only the distinct ones).

The product of its digits is 20412, while the sum is 38.

The square root of 13729916 is about 3705.3901279083. The cubic root of 13729916 is about 239.4542925285.

The spelling of 13729916 in words is "thirteen million, seven hundred twenty-nine thousand, nine hundred sixteen".