12388667 has 4 divisors (see below), whose sum is σ = 12395736. Its totient is φ = 12381600.

The previous prime is 12388661. The next prime is 12388669. The reversal of 12388667 is 76688321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12388667 - 2⁶ = 12388603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12388661) 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 3 ways as a sum of consecutive naturals, for example, 1292 + ... + 5142.

It is an arithmetic number, because the mean of its divisors is an integer number (3098934).

Almost surely, 2^12388667 is an apocalyptic number.

12388667 is a deficient number, since it is larger than the sum of its proper divisors (7069).

12388667 is an equidigital number, since it uses as much as digits as its factorization.

12388667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7068.

The product of its digits is 96768, while the sum is 41.

The square root of 12388667 is about 3519.7538266191. The cubic root of 12388667 is about 231.3883698795.

The spelling of 12388667 in words is "twelve million, three hundred eighty-eight thousand, six hundred sixty-seven".