12387500 has 36 divisors (see below), whose sum is σ = 27123264. Its totient is φ = 4950000.

The previous prime is 12387481. The next prime is 12387517. The reversal of 12387500 is 578321.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12387500.

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 11 ways as a sum of consecutive naturals, for example, 12005 + ... + 12995.

It is an arithmetic number, because the mean of its divisors is an integer number (753424).

Almost surely, 2^12387500 is an apocalyptic number.

12387500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12387500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13561632).

12387500 is an abundant number, since it is smaller than the sum of its proper divisors (14735764).

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

12387500 is an frugal number, since it uses more digits than its factorization.

12387500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020 (or 998 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 12387500 is about 3519.5880440756. The cubic root of 12387500 is about 231.3811041340.

The spelling of 12387500 in words is "twelve million, three hundred eighty-seven thousand, five hundred".