12087912 has 16 divisors (see below), whose sum is σ = 30219840. Its totient is φ = 4029296.

The previous prime is 12087899. The next prime is 12087919. The reversal of 12087912 is 21978021.

It is a super-2 number, since 2×12087912² = 292235233039488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12087912.

It is not an unprimeable number, because it can be changed into a prime (12087919) 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 in 3 ways as a sum of consecutive naturals, for example, 251808 + ... + 251855.

It is an arithmetic number, because the mean of its divisors is an integer number (1888740).

Almost surely, 2^12087912 is an apocalyptic number.

12087912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12087912 is an abundant number, since it is smaller than the sum of its proper divisors (18131928).

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

12087912 is a wasteful number, since it uses less digits than its factorization.

12087912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503672 (or 503668 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 12087912 is about 3476.7674641828. The cubic root of 12087912 is about 229.5005672068.

The spelling of 12087912 in words is "twelve million, eighty-seven thousand, nine hundred twelve".