9898020 has 72 divisors (see below), whose sum is σ = 32760000. Its totient is φ = 2399040.

The previous prime is 9898003. The next prime is 9898081. The reversal of 9898020 is 208989.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 520 + ... + 4479.

It is an arithmetic number, because the mean of its divisors is an integer number (455000).

Almost surely, 2^9898020 is an apocalyptic number.

9898020 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9898020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16380000).

9898020 is an abundant number, since it is smaller than the sum of its proper divisors (22861980).

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

9898020 is a wasteful number, since it uses less digits than its factorization.

9898020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5025 (or 5020 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 9898020 is about 3146.1118861223. Note that the first 3 decimals coincide. The cubic root of 9898020 is about 214.7086010863.

It can be divided in two parts, 989 and 8020, that added together give a palindrome (9009).

The spelling of 9898020 in words is "nine million, eight hundred ninety-eight thousand, twenty".