9872711 has 2 divisors, whose sum is σ = 9872712. Its totient is φ = 9872710.

The previous prime is 9872693. The next prime is 9872713. The reversal of 9872711 is 1172789.

9872711 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9872711 is a prime.

It is a Sophie Germain prime.

Together with 9872713, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9872713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4936355 + 4936356.

It is an arithmetic number, because the mean of its divisors is an integer number (4936356).

Almost surely, 2^9872711 is an apocalyptic number.

9872711 is a deficient number, since it is larger than the sum of its proper divisors (1).

9872711 is an equidigital number, since it uses as much as digits as its factorization.

9872711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 35.

The square root of 9872711 is about 3142.0870452615. The cubic root of 9872711 is about 214.5254433045.

The spelling of 9872711 in words is "nine million, eight hundred seventy-two thousand, seven hundred eleven".