13808636 has 12 divisors (see below), whose sum is σ = 24754800. Its totient is φ = 6735840.

The previous prime is 13808623. The next prime is 13808651. The reversal of 13808636 is 63680831.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13808596 and 13808605.

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, 41936 + ... + 42263.

It is an arithmetic number, because the mean of its divisors is an integer number (2062900).

Almost surely, 2^13808636 is an apocalyptic number.

It is an amenable number.

13808636 is a deficient number, since it is larger than the sum of its proper divisors (10946164).

13808636 is a wasteful number, since it uses less digits than its factorization.

13808636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84244 (or 84242 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 13808636 is about 3715.9973089334. The cubic root of 13808636 is about 239.9110550037.

The spelling of 13808636 in words is "thirteen million, eight hundred eight thousand, six hundred thirty-six".