12388937 has 16 divisors (see below), whose sum is σ = 14478912. Its totient is φ = 10475520.

The previous prime is 12388921. The next prime is 12388949. The reversal of 12388937 is 73988321.

It is not a de Polignac number, because 12388937 - 2⁴ = 12388921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12388894 and 12388903.

It is not an unprimeable number, because it can be changed into a prime (12388967) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 17798 + ... + 18480.

It is an arithmetic number, because the mean of its divisors is an integer number (904932).

Almost surely, 2^12388937 is an apocalyptic number.

12388937 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12388937 is a deficient number, since it is larger than the sum of its proper divisors (2089975).

12388937 is a wasteful number, since it uses less digits than its factorization.

12388937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808.

The product of its digits is 72576, while the sum is 41.

The square root of 12388937 is about 3519.7921813653. The cubic root of 12388937 is about 231.3900508354.

The spelling of 12388937 in words is "twelve million, three hundred eighty-eight thousand, nine hundred thirty-seven".