11688668 has 6 divisors (see below), whose sum is σ = 20455176. Its totient is φ = 5844332.

The previous prime is 11688631. The next prime is 11688671. The reversal of 11688668 is 86688611.

It is a happy number.

It is a super-2 number, since 2×11688668² = 273249919228448, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 1461080 + ... + 1461087.

It is an arithmetic number, because the mean of its divisors is an integer number (3409196).

Almost surely, 2^11688668 is an apocalyptic number.

It is an amenable number.

11688668 is a deficient number, since it is larger than the sum of its proper divisors (8766508).

11688668 is a wasteful number, since it uses less digits than its factorization.

11688668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2922171 (or 2922169 counting only the distinct ones).

The product of its digits is 110592, while the sum is 44.

The square root of 11688668 is about 3418.8694037649. The cubic root of 11688668 is about 226.9455515745.

The spelling of 11688668 in words is "eleven million, six hundred eighty-eight thousand, six hundred sixty-eight".