11637868 has 24 divisors (see below), whose sum is σ = 22599360. Its totient is φ = 5199120.

The previous prime is 11637863. The next prime is 11637881. The reversal of 11637868 is 86873611.

It is a self number, because there is not a number n which added to its sum of digits gives 11637868.

It is not an unprimeable number, because it can be changed into a prime (11637863) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 355 + ... + 4837.

It is an arithmetic number, because the mean of its divisors is an integer number (941640).

Almost surely, 2^11637868 is an apocalyptic number.

It is an amenable number.

11637868 is a deficient number, since it is larger than the sum of its proper divisors (10961492).

11637868 is a wasteful number, since it uses less digits than its factorization.

11637868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4557 (or 4555 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 11637868 is about 3411.4319574044. The cubic root of 11637868 is about 226.6162988816.

The spelling of 11637868 in words is "eleven million, six hundred thirty-seven thousand, eight hundred sixty-eight".