9813930217 has 24 divisors (see below), whose sum is σ = 12784292160. Its totient is φ = 7356173760.

The previous prime is 9813930211. The next prime is 9813930251. The reversal of 9813930217 is 7120393189.

It is not a de Polignac number, because 9813930217 - 2¹¹ = 9813928169 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9813930211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195834 + ... + 240787.

It is an arithmetic number, because the mean of its divisors is an integer number (532678840).

Almost surely, 2^9813930217 is an apocalyptic number.

It is an amenable number.

9813930217 is a deficient number, since it is larger than the sum of its proper divisors (2970361943).

9813930217 is a wasteful number, since it uses less digits than its factorization.

9813930217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436673 (or 436660 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 9813930217 is about 99065.2826019287. The cubic root of 9813930217 is about 2140.9884373919.

The spelling of 9813930217 in words is "nine billion, eight hundred thirteen million, nine hundred thirty thousand, two hundred seventeen".