9898520 has 16 divisors (see below), whose sum is σ = 22271760. Its totient is φ = 3959392.

The previous prime is 9898519. The next prime is 9898543. The reversal of 9898520 is 258989.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123692 + ... + 123771.

It is an arithmetic number, because the mean of its divisors is an integer number (1391985).

Almost surely, 2^9898520 is an apocalyptic number.

It is an amenable number.

9898520 is an abundant number, since it is smaller than the sum of its proper divisors (12373240).

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

9898520 is a wasteful number, since it uses less digits than its factorization.

9898520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247474 (or 247470 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 9898520 is about 3146.1913482813. The cubic root of 9898520 is about 214.7122163714.

The spelling of 9898520 in words is "nine million, eight hundred ninety-eight thousand, five hundred twenty".