12936387 has 8 divisors (see below), whose sum is σ = 17268736. Its totient is φ = 8614152.

The previous prime is 12936317. The next prime is 12936401. The reversal of 12936387 is 78363921.

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

It is not a de Polignac number, because 12936387 - 2¹⁴ = 12920003 is a prime.

It is a super-2 number, since 2×12936387² = 334700217227538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12936317) 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, 1278 + ... + 5244.

It is an arithmetic number, because the mean of its divisors is an integer number (2158592).

Almost surely, 2^12936387 is an apocalyptic number.

12936387 is a deficient number, since it is larger than the sum of its proper divisors (4332349).

12936387 is a wasteful number, since it uses less digits than its factorization.

12936387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5057.

The product of its digits is 54432, while the sum is 39.

The square root of 12936387 is about 3596.7189214616. The cubic root of 12936387 is about 234.7493146905.

The spelling of 12936387 in words is "twelve million, nine hundred thirty-six thousand, three hundred eighty-seven".