11687788 has 24 divisors (see below), whose sum is σ = 23948064. Its totient is φ = 4886400.

The previous prime is 11687771. The next prime is 11687801. The reversal of 11687788 is 88778611.

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 in 7 ways as a sum of consecutive naturals, for example, 3943 + ... + 6238.

It is an arithmetic number, because the mean of its divisors is an integer number (997836).

Almost surely, 2^11687788 is an apocalyptic number.

It is an amenable number.

11687788 is an abundant number, since it is smaller than the sum of its proper divisors (12260276).

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

11687788 is a wasteful number, since it uses less digits than its factorization.

11687788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10233 (or 10231 counting only the distinct ones).

The product of its digits is 150528, while the sum is 46.

The square root of 11687788 is about 3418.7407038265. The cubic root of 11687788 is about 226.9398561124.

The spelling of 11687788 in words is "eleven million, six hundred eighty-seven thousand, seven hundred eighty-eight".