9085699709 has 2 divisors, whose sum is σ = 9085699710. Its totient is φ = 9085699708.

The previous prime is 9085699633. The next prime is 9085699751. The reversal of 9085699709 is 9079965809.

9085699709 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 can be written as a sum of positive squares in only one way, i.e., 8376276484 + 709423225 = 91522^2 + 26635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9085699709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9085699769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4542849854 + 4542849855.

It is an arithmetic number, because the mean of its divisors is an integer number (4542849855).

Almost surely, 2^9085699709 is an apocalyptic number.

It is an amenable number.

9085699709 is a deficient number, since it is larger than the sum of its proper divisors (1).

9085699709 is an equidigital number, since it uses as much as digits as its factorization.

9085699709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11022480, while the sum is 62.

The square root of 9085699709 is about 95318.9367806838. The cubic root of 9085699709 is about 2086.6652947550.

The spelling of 9085699709 in words is "nine billion, eighty-five million, six hundred ninety-nine thousand, seven hundred nine".