12738389 has 8 divisors (see below), whose sum is σ = 14074560. Its totient is φ = 11467456.

The previous prime is 12738373. The next prime is 12738419. The reversal of 12738389 is 98383721.

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 12738389 - 2⁴ = 12738373 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 (12738289) 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, 15899 + ... + 16680.

It is an arithmetic number, because the mean of its divisors is an integer number (1759320).

Almost surely, 2^12738389 is an apocalyptic number.

It is an amenable number.

12738389 is a deficient number, since it is larger than the sum of its proper divisors (1336171).

12738389 is a wasteful number, since it uses less digits than its factorization.

12738389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32619.

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

The square root of 12738389 is about 3569.0879787419. The cubic root of 12738389 is about 233.5454993129.

The spelling of 12738389 in words is "twelve million, seven hundred thirty-eight thousand, three hundred eighty-nine".