9898560 has 168 divisors, whose sum is σ = 38990016. Its totient is φ = 2257920.

The previous prime is 9898547. The next prime is 9898571. The reversal of 9898560 is 658989.

9898560 is a `hidden beast` number, since 9 + 89 + 8 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 19915 + ... + 20405.

Almost surely, 2^9898560 is an apocalyptic number.

9898560 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 9898560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19495008).

9898560 is an abundant number, since it is smaller than the sum of its proper divisors (29091456).

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

9898560 is a wasteful number, since it uses less digits than its factorization.

9898560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 9898560 is about 3146.1977051673. The cubic root of 9898560 is about 214.7125055890.

The spelling of 9898560 in words is "nine million, eight hundred ninety-eight thousand, five hundred sixty".