12387006 has 20 divisors (see below), whose sum is σ = 27756432. Its totient is φ = 4128948.

The previous prime is 12386989. The next prime is 12387007. The reversal of 12387006 is 60078321.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12387007) 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 9 ways as a sum of consecutive naturals, for example, 38070 + ... + 38393.

Almost surely, 2^12387006 is an apocalyptic number.

12387006 is an abundant number, since it is smaller than the sum of its proper divisors (15369426).

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

12387006 is an equidigital number, since it uses as much as digits as its factorization.

12387006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76477 (or 76468 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 12387006 is about 3519.5178647082. The cubic root of 12387006 is about 231.3780283510.

The spelling of 12387006 in words is "twelve million, three hundred eighty-seven thousand, six".