9998548 has 36 divisors (see below), whose sum is σ = 20556480. Its totient is φ = 4242672.

The previous prime is 9998543. The next prime is 9998557. The reversal of 9998548 is 8458999.

It is a junction number, because it is equal to n+sod(n) for n = 9998495 and 9998504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9998543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27061 + ... + 27427.

Almost surely, 2^9998548 is an apocalyptic number.

9998548 is a gapful number since it is divisible by the number (98) 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 9998548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10278240).

9998548 is an abundant number, since it is smaller than the sum of its proper divisors (10557932).

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

9998548 is a wasteful number, since it uses less digits than its factorization.

9998548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 515 counting only the distinct ones).

The product of its digits is 933120, while the sum is 52.

The square root of 9998548 is about 3162.0480704758. The cubic root of 9998548 is about 215.4330410346.

The spelling of 9998548 in words is "nine million, nine hundred ninety-eight thousand, five hundred forty-eight".