8711009 has 2 divisors, whose sum is σ = 8711010. Its totient is φ = 8711008.

The previous prime is 8710979. The next prime is 8711011. The reversal of 8711009 is 9001178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7507600 + 1203409 = 2740^2 + 1097^2 .

It is a cyclic number.

It is not a de Polignac number, because 8711009 - 2²⁰ = 7662433 is a prime.

Together with 8711011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8713009) 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, 4355504 + 4355505.

It is an arithmetic number, because the mean of its divisors is an integer number (4355505).

Almost surely, 2^8711009 is an apocalyptic number.

It is an amenable number.

8711009 is a deficient number, since it is larger than the sum of its proper divisors (1).

8711009 is an equidigital number, since it uses as much as digits as its factorization.

8711009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 8711009 is about 2951.4418510281. The cubic root of 8711009 is about 205.7577272445.

The spelling of 8711009 in words is "eight million, seven hundred eleven thousand, nine".