12871927 has 4 divisors (see below), whose sum is σ = 13431600. Its totient is φ = 12312256.

The previous prime is 12871891. The next prime is 12871933. The reversal of 12871927 is 72917821.

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

It is a cyclic number.

It is not a de Polignac number, because 12871927 - 2⁷ = 12871799 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 (12871627) 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, 279802 + ... + 279847.

It is an arithmetic number, because the mean of its divisors is an integer number (3357900).

Almost surely, 2^12871927 is an apocalyptic number.

12871927 is a deficient number, since it is larger than the sum of its proper divisors (559673).

12871927 is an equidigital number, since it uses as much as digits as its factorization.

12871927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559672.

The product of its digits is 14112, while the sum is 37.

The square root of 12871927 is about 3587.7467859368. The cubic root of 12871927 is about 234.3587588627.

The spelling of 12871927 in words is "twelve million, eight hundred seventy-one thousand, nine hundred twenty-seven".