9998508 has 48 divisors (see below), whose sum is σ = 25401600. Its totient is φ = 3042624.

The previous prime is 9998479. The next prime is 9998539. The reversal of 9998508 is 8058999.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16393 + ... + 16991.

It is an arithmetic number, because the mean of its divisors is an integer number (529200).

Almost surely, 2^9998508 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 9998508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12700800).

9998508 is an abundant number, since it is smaller than the sum of its proper divisors (15403092).

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

9998508 is a wasteful number, since it uses less digits than its factorization.

9998508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726 (or 724 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 48.

The square root of 9998508 is about 3162.0417454550. The cubic root of 9998508 is about 215.4327537484.

The spelling of 9998508 in words is "nine million, nine hundred ninety-eight thousand, five hundred eight".