12856927 has 4 divisors (see below), whose sum is σ = 12890880. Its totient is φ = 12822976.

The previous prime is 12856891. The next prime is 12856933. The reversal of 12856927 is 72965821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12856927 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12856927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12836927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16402 + ... + 17167.

It is an arithmetic number, because the mean of its divisors is an integer number (3222720).

Almost surely, 2^12856927 is an apocalyptic number.

12856927 is a deficient number, since it is larger than the sum of its proper divisors (33953).

12856927 is an equidigital number, since it uses as much as digits as its factorization.

12856927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33952.

The product of its digits is 60480, while the sum is 40.

The square root of 12856927 is about 3585.6557280364. The cubic root of 12856927 is about 234.2676886397.

The spelling of 12856927 in words is "twelve million, eight hundred fifty-six thousand, nine hundred twenty-seven".