12387912 has 16 divisors (see below), whose sum is σ = 30969840. Its totient is φ = 4129296.

The previous prime is 12387887. The next prime is 12387937. The reversal of 12387912 is 21978321.

It is an interprime number because it is at equal distance from previous prime (12387887) and next prime (12387937).

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, 258058 + ... + 258105.

It is an arithmetic number, because the mean of its divisors is an integer number (1935615).

Almost surely, 2^12387912 is an apocalyptic number.

12387912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12387912 is an abundant number, since it is smaller than the sum of its proper divisors (18581928).

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

12387912 is a wasteful number, since it uses less digits than its factorization.

12387912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516172 (or 516168 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 12387912 is about 3519.6465731661. The cubic root of 12387912 is about 231.3836692993.

The spelling of 12387912 in words is "twelve million, three hundred eighty-seven thousand, nine hundred twelve".