11687888 has 20 divisors (see below), whose sum is σ = 23837760. Its totient is φ = 5536224.

The previous prime is 11687861. The next prime is 11687903. The reversal of 11687888 is 88878611.

11687888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18920 + ... + 19527.

It is an arithmetic number, because the mean of its divisors is an integer number (1191888).

Almost surely, 2^11687888 is an apocalyptic number.

It is an amenable number.

11687888 is an abundant number, since it is smaller than the sum of its proper divisors (12149872).

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

11687888 is a wasteful number, since it uses less digits than its factorization.

11687888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38474 (or 38468 counting only the distinct ones).

The product of its digits is 172032, while the sum is 47.

The square root of 11687888 is about 3418.7553290635. The cubic root of 11687888 is about 226.9405033384.

The spelling of 11687888 in words is "eleven million, six hundred eighty-seven thousand, eight hundred eighty-eight".