11988788 has 24 divisors (see below), whose sum is σ = 24216192. Its totient is φ = 5086944.

The previous prime is 11988751. The next prime is 11988799. The reversal of 11988788 is 88788911.

It is a super-4 number, since 4×11988788⁴ (a number of 29 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 806 + ... + 4962.

It is an arithmetic number, because the mean of its divisors is an integer number (1009008).

Almost surely, 2^11988788 is an apocalyptic number.

It is an amenable number.

11988788 is an abundant number, since it is smaller than the sum of its proper divisors (12227404).

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

11988788 is a wasteful number, since it uses less digits than its factorization.

11988788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271 (or 4269 counting only the distinct ones).

The product of its digits is 258048, while the sum is 50.

The square root of 11988788 is about 3462.4829241456. The cubic root of 11988788 is about 228.8715233140.

The spelling of 11988788 in words is "eleven million, nine hundred eighty-eight thousand, seven hundred eighty-eight".