13855636 has 24 divisors (see below), whose sum is σ = 26351360. Its totient is φ = 6350400.

The previous prime is 13855627. The next prime is 13855651. The reversal of 13855636 is 63655831.

It is a junction number, because it is equal to n+sod(n) for n = 13855595 and 13855604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 585 + ... + 5296.

Almost surely, 2^13855636 is an apocalyptic number.

It is an amenable number.

13855636 is a deficient number, since it is larger than the sum of its proper divisors (12495724).

13855636 is a wasteful number, since it uses less digits than its factorization.

13855636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5935 (or 5933 counting only the distinct ones).

The product of its digits is 64800, while the sum is 37.

The square root of 13855636 is about 3722.3159457521. The cubic root of 13855636 is about 240.1829392234.

It can be divided in two parts, 1385 and 5636, that added together give a triangular number (7021 = T₁₁₈).

The spelling of 13855636 in words is "thirteen million, eight hundred fifty-five thousand, six hundred thirty-six".