12805711 has 2 divisors, whose sum is σ = 12805712. Its totient is φ = 12805710.

The previous prime is 12805703. The next prime is 12805717. The reversal of 12805711 is 11750821.

12805711 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (11750821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12805711 - 2³ = 12805703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12805717) 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 as a sum of consecutive naturals, namely, 6402855 + 6402856.

It is an arithmetic number, because the mean of its divisors is an integer number (6402856).

Almost surely, 2^12805711 is an apocalyptic number.

12805711 is a deficient number, since it is larger than the sum of its proper divisors (1).

12805711 is an equidigital number, since it uses as much as digits as its factorization.

12805711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 12805711 is about 3578.5068115067. The cubic root of 12805711 is about 233.9562036036.

The spelling of 12805711 in words is "twelve million, eight hundred five thousand, seven hundred eleven".