12796389 has 12 divisors (see below), whose sum is σ = 18737836. Its totient is φ = 8413632.

The previous prime is 12796363. The next prime is 12796391. The reversal of 12796389 is 98369721.

12796389 is a `hidden beast` number, since 1 + 2 + 7 + 9 + 638 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8208225 + 4588164 = 2865^2 + 2142^2 .

It is not a de Polignac number, because 12796389 - 2⁹ = 12795877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12796309) 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 11 ways as a sum of consecutive naturals, for example, 9082 + ... + 10395.

Almost surely, 2^12796389 is an apocalyptic number.

It is an amenable number.

12796389 is a deficient number, since it is larger than the sum of its proper divisors (5941447).

12796389 is a wasteful number, since it uses less digits than its factorization.

12796389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19556 (or 19553 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 12796389 is about 3577.2040758112. The cubic root of 12796389 is about 233.8994198464.

The spelling of 12796389 in words is "twelve million, seven hundred ninety-six thousand, three hundred eighty-nine".