11688655 has 12 divisors (see below), whose sum is σ = 15334776. Its totient is φ = 8482400.

The previous prime is 11688631. The next prime is 11688671. The reversal of 11688655 is 55688611.

It is not a de Polignac number, because 11688655 - 2¹⁵ = 11655887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25125 + ... + 25585.

It is an arithmetic number, because the mean of its divisors is an integer number (1277898).

Almost surely, 2^11688655 is an apocalyptic number.

11688655 is a deficient number, since it is larger than the sum of its proper divisors (3646121).

11688655 is an frugal number, since it uses more digits than its factorization.

11688655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938 (or 477 counting only the distinct ones).

The product of its digits is 57600, while the sum is 40.

The square root of 11688655 is about 3418.8675025511. The cubic root of 11688655 is about 226.9454674391.

The spelling of 11688655 in words is "eleven million, six hundred eighty-eight thousand, six hundred fifty-five".