11688618 has 32 divisors (see below), whose sum is σ = 24111360. Its totient is φ = 3775680.

The previous prime is 11688587. The next prime is 11688631. The reversal of 11688618 is 81688611.

11688618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50928 + ... + 51156.

It is an arithmetic number, because the mean of its divisors is an integer number (753480).

Almost surely, 2^11688618 is an apocalyptic number.

11688618 is an abundant number, since it is smaller than the sum of its proper divisors (12422742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11688618 is a wasteful number, since it uses less digits than its factorization.

11688618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462.

The product of its digits is 18432, while the sum is 39.

The square root of 11688618 is about 3418.8620913982. The cubic root of 11688618 is about 226.9452279764.

The spelling of 11688618 in words is "eleven million, six hundred eighty-eight thousand, six hundred eighteen".