9983645331 has 16 divisors (see below), whose sum is σ = 14523356160. Its totient is φ = 6049989920.

The previous prime is 9983645291. The next prime is 9983645339. The reversal of 9983645331 is 1335463899.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 9983645331 - 2¹⁸ = 9983383187 is a prime.

It is a super-2 number, since 2×9983645331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9983645339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 480841 + ... + 501173.

It is an arithmetic number, because the mean of its divisors is an integer number (907709760).

Almost surely, 2^9983645331 is an apocalyptic number.

9983645331 is a deficient number, since it is larger than the sum of its proper divisors (4539710829).

9983645331 is a wasteful number, since it uses less digits than its factorization.

9983645331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35226.

The product of its digits is 2099520, while the sum is 51.

The square root of 9983645331 is about 99918.1931932318. The cubic root of 9983645331 is about 2153.2595469551.

The spelling of 9983645331 in words is "nine billion, nine hundred eighty-three million, six hundred forty-five thousand, three hundred thirty-one".