12388789 has 8 divisors (see below), whose sum is σ = 14774400. Its totient is φ = 10157136.

The previous prime is 12388787. The next prime is 12388811. The reversal of 12388789 is 98788321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12388789 - 2¹ = 12388787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12388787) 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 7 ways as a sum of consecutive naturals, for example, 38314 + ... + 38635.

It is an arithmetic number, because the mean of its divisors is an integer number (1846800).

Almost surely, 2^12388789 is an apocalyptic number.

It is an amenable number.

12388789 is a deficient number, since it is larger than the sum of its proper divisors (2385611).

12388789 is an equidigital number, since it uses as much as digits as its factorization.

12388789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76979.

The product of its digits is 193536, while the sum is 46.

The square root of 12388789 is about 3519.7711573340. The cubic root of 12388789 is about 231.3891294256.

The spelling of 12388789 in words is "twelve million, three hundred eighty-eight thousand, seven hundred eighty-nine".