11818636 has 12 divisors (see below), whose sum is σ = 21163912. Its totient is φ = 5771808.

The previous prime is 11818607. The next prime is 11818643. The reversal of 11818636 is 63681811.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34185 + ... + 34528.

Almost surely, 2^11818636 is an apocalyptic number.

It is an amenable number.

11818636 is a deficient number, since it is larger than the sum of its proper divisors (9345276).

11818636 is a wasteful number, since it uses less digits than its factorization.

11818636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68760 (or 68758 counting only the distinct ones).

The product of its digits is 6912, while the sum is 34.

The square root of 11818636 is about 3437.8243119741. The cubic root of 11818636 is about 227.7835999481.

The spelling of 11818636 in words is "eleven million, eight hundred eighteen thousand, six hundred thirty-six".