13639796 has 12 divisors (see below), whose sum is σ = 25126080. Its totient is φ = 6460920.

The previous prime is 13639789. The next prime is 13639799. The reversal of 13639796 is 69793631.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13639799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89660 + ... + 89811.

It is an arithmetic number, because the mean of its divisors is an integer number (2093840).

Almost surely, 2^13639796 is an apocalyptic number.

It is an amenable number.

13639796 is a deficient number, since it is larger than the sum of its proper divisors (11486284).

13639796 is a wasteful number, since it uses less digits than its factorization.

13639796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179494 (or 179492 counting only the distinct ones).

The product of its digits is 183708, while the sum is 44.

The square root of 13639796 is about 3693.2094443722. The cubic root of 13639796 is about 238.9292344893.

The spelling of 13639796 in words is "thirteen million, six hundred thirty-nine thousand, seven hundred ninety-six".