12809711 has 2 divisors, whose sum is σ = 12809712. Its totient is φ = 12809710.

The previous prime is 12809701. The next prime is 12809717. The reversal of 12809711 is 11790821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12809711 - 2⁶ = 12809647 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12809717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6404855 + 6404856.

It is an arithmetic number, because the mean of its divisors is an integer number (6404856).

Almost surely, 2^12809711 is an apocalyptic number.

12809711 is a deficient number, since it is larger than the sum of its proper divisors (1).

12809711 is an equidigital number, since it uses as much as digits as its factorization.

12809711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 12809711 is about 3579.0656601968. The cubic root of 12809711 is about 233.9805606371.

The spelling of 12809711 in words is "twelve million, eight hundred nine thousand, seven hundred eleven".