12936393 has 24 divisors (see below), whose sum is σ = 19468800. Its totient is φ = 8268480.

The previous prime is 12936317. The next prime is 12936401. The reversal of 12936393 is 39363921.

It is a happy number.

12936393 is a `hidden beast` number, since 12 + 9 + 3 + 639 + 3 = 666.

It is not a de Polignac number, because 12936393 - 2¹⁰ = 12935369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12931393) 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 23 ways as a sum of consecutive naturals, for example, 55405 + ... + 55637.

It is an arithmetic number, because the mean of its divisors is an integer number (811200).

Almost surely, 2^12936393 is an apocalyptic number.

It is an amenable number.

12936393 is a deficient number, since it is larger than the sum of its proper divisors (6532407).

12936393 is a wasteful number, since it uses less digits than its factorization.

12936393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 466 counting only the distinct ones).

The product of its digits is 26244, while the sum is 36.

The square root of 12936393 is about 3596.7197555551. The cubic root of 12936393 is about 234.7493509834.

The spelling of 12936393 in words is "twelve million, nine hundred thirty-six thousand, three hundred ninety-three".