12387660 has 24 divisors (see below), whose sum is σ = 34685616. Its totient is φ = 3303360.

The previous prime is 12387659. The next prime is 12387671. The reversal of 12387660 is 6678321.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 103171 + ... + 103290.

It is an arithmetic number, because the mean of its divisors is an integer number (1445234).

Almost surely, 2^12387660 is an apocalyptic number.

12387660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12387660 is an abundant number, since it is smaller than the sum of its proper divisors (22297956).

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

12387660 is a wasteful number, since it uses less digits than its factorization.

12387660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206473 (or 206471 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 12387660 is about 3519.6107739351. The cubic root of 12387660 is about 231.3821003215.

The spelling of 12387660 in words is "twelve million, three hundred eighty-seven thousand, six hundred sixty".