9798836805 has 24 divisors (see below), whose sum is σ = 17983748952. Its totient is φ = 4918631424.

The previous prime is 9798836791. The next prime is 9798836819. The reversal of 9798836805 is 5086388979.

It is an interprime number because it is at equal distance from previous prime (9798836791) and next prime (9798836819).

It can be written as a sum of positive squares in 4 ways, for example, as 4282655364 + 5516181441 = 65442^2 + 74271^2 .

It is not a de Polignac number, because 9798836805 - 2⁹ = 9798836293 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6403704 + ... + 6405233.

It is an arithmetic number, because the mean of its divisors is an integer number (749322873).

Almost surely, 2^9798836805 is an apocalyptic number.

It is an amenable number.

9798836805 is a deficient number, since it is larger than the sum of its proper divisors (8184912147).

9798836805 is a wasteful number, since it uses less digits than its factorization.

9798836805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12808965 (or 12808962 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The square root of 9798836805 is about 98989.0741698295. The cubic root of 9798836805 is about 2139.8902908354.

The spelling of 9798836805 in words is "nine billion, seven hundred ninety-eight million, eight hundred thirty-six thousand, eight hundred five".