9998648 has 16 divisors (see below), whose sum is σ = 20451960. Its totient is φ = 4544800.

The previous prime is 9998641. The next prime is 9998689. The reversal of 9998648 is 8468999.

It is a self number, because there is not a number n which added to its sum of digits gives 9998648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9998641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56723 + ... + 56898.

Almost surely, 2^9998648 is an apocalyptic number.

It is an amenable number.

9998648 is an abundant number, since it is smaller than the sum of its proper divisors (10453312).

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

9998648 is a wasteful number, since it uses less digits than its factorization.

9998648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113638 (or 113634 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 53.

The square root of 9998648 is about 3162.0638829726. The cubic root of 9998648 is about 215.4337592466.

The spelling of 9998648 in words is "nine million, nine hundred ninety-eight thousand, six hundred forty-eight".