12856727 has 4 divisors (see below), whose sum is σ = 13845720. Its totient is φ = 11867736.

The previous prime is 12856721. The next prime is 12856729. The reversal of 12856727 is 72765821.

12856727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72765821 = 59 ⋅1233319.

It is a cyclic number.

It is not a de Polignac number, because 12856727 - 2¹⁴ = 12840343 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 (12856721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494477 + ... + 494502.

It is an arithmetic number, because the mean of its divisors is an integer number (3461430).

Almost surely, 2^12856727 is an apocalyptic number.

12856727 is a deficient number, since it is larger than the sum of its proper divisors (988993).

12856727 is an equidigital number, since it uses as much as digits as its factorization.

12856727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988992.

The product of its digits is 47040, while the sum is 38.

The square root of 12856727 is about 3585.6278390262. The cubic root of 12856727 is about 234.2664738916.

The spelling of 12856727 in words is "twelve million, eight hundred fifty-six thousand, seven hundred twenty-seven".