12789338 has 16 divisors (see below), whose sum is σ = 20428200. Its totient is φ = 5984256.

The previous prime is 12789331. The next prime is 12789341. The reversal of 12789338 is 83398721.

It can be written as a sum of positive squares in 4 ways, for example, as 12201049 + 588289 = 3493^2 + 767^2 .

It is a super-3 number, since 3×12789338³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12789295 and 12789304.

It is not an unprimeable number, because it can be changed into a prime (12789331) 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 7 ways as a sum of consecutive naturals, for example, 5588 + ... + 7536.

Almost surely, 2^12789338 is an apocalyptic number.

12789338 is a deficient number, since it is larger than the sum of its proper divisors (7638862).

12789338 is a wasteful number, since it uses less digits than its factorization.

12789338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161.

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

The square root of 12789338 is about 3576.2183937785. The cubic root of 12789338 is about 233.8564512710.

The spelling of 12789338 in words is "twelve million, seven hundred eighty-nine thousand, three hundred thirty-eight".