11985888 has 24 divisors (see below), whose sum is σ = 31463208. Its totient is φ = 3995264.

The previous prime is 11985887. The next prime is 11985889. The reversal of 11985888 is 88858911.

It is an interprime number because it is at equal distance from previous prime (11985887) and next prime (11985889).

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×11985888² = 287323022297088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11985887) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 62331 + ... + 62522.

It is an arithmetic number, because the mean of its divisors is an integer number (1310967).

Almost surely, 2^11985888 is an apocalyptic number.

It is an amenable number.

11985888 is an abundant number, since it is smaller than the sum of its proper divisors (19477320).

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

11985888 is a wasteful number, since it uses less digits than its factorization.

11985888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124866 (or 124858 counting only the distinct ones).

The product of its digits is 184320, while the sum is 48.

The square root of 11985888 is about 3462.0641241895. The cubic root of 11985888 is about 228.8530677108.

The spelling of 11985888 in words is "eleven million, nine hundred eighty-five thousand, eight hundred eighty-eight".