9843397065 has 48 divisors (see below), whose sum is σ = 17939722320. Its totient is φ = 4985648640.

The previous prime is 9843397061. The next prime is 9843397097. The reversal of 9843397065 is 5607933489.

It can be written as a sum of positive squares in 8 ways, for example, as 591073344 + 9252323721 = 24312^2 + 96189^2 .

It is not a de Polignac number, because 9843397065 - 2² = 9843397061 is a prime.

It is a super-2 number, since 2×9843397065² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9843397061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17779 + ... + 141431.

It is an arithmetic number, because the mean of its divisors is an integer number (373744215).

Almost surely, 2^9843397065 is an apocalyptic number.

It is an amenable number.

9843397065 is a deficient number, since it is larger than the sum of its proper divisors (8096325255).

9843397065 is a wasteful number, since it uses less digits than its factorization.

9843397065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123754 (or 123751 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The square root of 9843397065 is about 99213.8955237622. The cubic root of 9843397065 is about 2143.1291069199.

The spelling of 9843397065 in words is "nine billion, eight hundred forty-three million, three hundred ninety-seven thousand, sixty-five".