9798395309 has 12 divisors (see below), whose sum is σ = 9891588252. Its totient is φ = 9705978240.

The previous prime is 9798395303. The next prime is 9798395351. The reversal of 9798395309 is 9035938979.

It can be written as a sum of positive squares in 2 ways, for example, as 3665939209 + 6132456100 = 60547^2 + 78310^2 .

It is not a de Polignac number, because 9798395309 - 2⁸ = 9798395053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9798395303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12293699 + ... + 12294495.

It is an arithmetic number, because the mean of its divisors is an integer number (824299021).

Almost surely, 2^9798395309 is an apocalyptic number.

It is an amenable number.

9798395309 is a deficient number, since it is larger than the sum of its proper divisors (93192943).

9798395309 is an equidigital number, since it uses as much as digits as its factorization.

9798395309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516 (or 1325 counting only the distinct ones).

The product of its (nonzero) digits is 16533720, while the sum is 62.

The square root of 9798395309 is about 98986.8441208224. The cubic root of 9798395309 is about 2139.8581520822.

The spelling of 9798395309 in words is "nine billion, seven hundred ninety-eight million, three hundred ninety-five thousand, three hundred nine".