9935470817 has 2 divisors, whose sum is σ = 9935470818. Its totient is φ = 9935470816.

The previous prime is 9935470777. The next prime is 9935470819. The reversal of 9935470817 is 7180745399.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9871614736 + 63856081 = 99356^2 + 7991^2 .

It is a cyclic number.

It is not a de Polignac number, because 9935470817 - 2¹⁰ = 9935469793 is a prime.

Together with 9935470819, 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 (9935470819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4967735408 + 4967735409.

It is an arithmetic number, because the mean of its divisors is an integer number (4967735409).

Almost surely, 2^9935470817 is an apocalyptic number.

It is an amenable number.

9935470817 is a deficient number, since it is larger than the sum of its proper divisors (1).

9935470817 is an equidigital number, since it uses as much as digits as its factorization.

9935470817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The square root of 9935470817 is about 99676.8318968856. The cubic root of 9935470817 is about 2149.7905559090.

The spelling of 9935470817 in words is "nine billion, nine hundred thirty-five million, four hundred seventy thousand, eight hundred seventeen".