9820748898 has 24 divisors (see below), whose sum is σ = 21497656908. Its totient is φ = 3239834112.

The previous prime is 9820748891. The next prime is 9820748929. The reversal of 9820748898 is 8988470289.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9280046889 + 540702009 = 96333^2 + 23253^2 .

It is not an unprimeable number, because it can be changed into a prime (9820748891) 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, 2810611 + ... + 2814102.

Almost surely, 2^9820748898 is an apocalyptic number.

9820748898 is an abundant number, since it is smaller than the sum of its proper divisors (11676908010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9820748898 is a wasteful number, since it uses less digits than its factorization.

9820748898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5624818 (or 5624815 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 63.

The square root of 9820748898 is about 99099.6917149594. The cubic root of 9820748898 is about 2141.4841727774.

The spelling of 9820748898 in words is "nine billion, eight hundred twenty million, seven hundred forty-eight thousand, eight hundred ninety-eight".