12865711 has 2 divisors, whose sum is σ = 12865712. Its totient is φ = 12865710.

The previous prime is 12865709. The next prime is 12865757. The reversal of 12865711 is 11756821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12865711 - 2¹ = 12865709 is a prime.

Together with 12865709, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12865771) 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 as a sum of consecutive naturals, namely, 6432855 + 6432856.

It is an arithmetic number, because the mean of its divisors is an integer number (6432856).

Almost surely, 2^12865711 is an apocalyptic number.

12865711 is a deficient number, since it is larger than the sum of its proper divisors (1).

12865711 is an equidigital number, since it uses as much as digits as its factorization.

12865711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 31.

The square root of 12865711 is about 3586.8803994558. The cubic root of 12865711 is about 234.3210279515.

The spelling of 12865711 in words is "twelve million, eight hundred sixty-five thousand, seven hundred eleven".