12384387 has 16 divisors (see below), whose sum is σ = 18775680. Its totient is φ = 8063496.

The previous prime is 12384353. The next prime is 12384391. The reversal of 12384387 is 78348321.

It is not a de Polignac number, because 12384387 - 2¹⁶ = 12318851 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12384187) 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 15 ways as a sum of consecutive naturals, for example, 4173 + ... + 6494.

It is an arithmetic number, because the mean of its divisors is an integer number (1173480).

Almost surely, 2^12384387 is an apocalyptic number.

12384387 is a deficient number, since it is larger than the sum of its proper divisors (6391293).

12384387 is a wasteful number, since it uses less digits than its factorization.

12384387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10719 (or 10713 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 12384387 is about 3519.1457770317. The cubic root of 12384387 is about 231.3617203540.

It can be divided in two parts, 1238 and 4387, that added together give a square (5625 = 75²).

The spelling of 12384387 in words is "twelve million, three hundred eighty-four thousand, three hundred eighty-seven".