11688988 has 6 divisors (see below), whose sum is σ = 20455736. Its totient is φ = 5844492.

The previous prime is 11688983. The next prime is 11689039. The reversal of 11688988 is 88988611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11688983) 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 as a sum of consecutive naturals, namely, 1461120 + ... + 1461127.

Almost surely, 2^11688988 is an apocalyptic number.

It is an amenable number.

11688988 is a deficient number, since it is larger than the sum of its proper divisors (8766748).

11688988 is a wasteful number, since it uses less digits than its factorization.

11688988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2922251 (or 2922249 counting only the distinct ones).

The product of its digits is 221184, while the sum is 49.

The square root of 11688988 is about 3418.9162025414. The cubic root of 11688988 is about 226.9476225808.

The spelling of 11688988 in words is "eleven million, six hundred eighty-eight thousand, nine hundred eighty-eight".