9899080 has 32 divisors (see below), whose sum is σ = 22643640. Its totient is φ = 3893760.

The previous prime is 9899069. The next prime is 9899119. The reversal of 9899080 is 809989.

It can be written as a sum of positive squares in 4 ways, for example, as 5207524 + 4691556 = 2282^2 + 2166^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412 + ... + 4468.

Almost surely, 2^9899080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9899080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11321820).

9899080 is an abundant number, since it is smaller than the sum of its proper divisors (12744560).

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

9899080 is a wasteful number, since it uses less digits than its factorization.

9899080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4129 (or 4125 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 9899080 is about 3146.2803435168. The cubic root of 9899080 is about 214.7162653462.

The spelling of 9899080 in words is "nine million, eight hundred ninety-nine thousand, eighty".