9988748 has 72 divisors (see below), whose sum is σ = 22924944. Its totient is φ = 3763200.

The previous prime is 9988747. The next prime is 9988753. The reversal of 9988748 is 8478899.

It is a self number, because there is not a number n which added to its sum of digits gives 9988748.

It is not an unprimeable number, because it can be changed into a prime (9988747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88340 + ... + 88452.

It is an arithmetic number, because the mean of its divisors is an integer number (318402).

Almost surely, 2^9988748 is an apocalyptic number.

9988748 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 9988748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11462472).

9988748 is an abundant number, since it is smaller than the sum of its proper divisors (12936196).

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

9988748 is a wasteful number, since it uses less digits than its factorization.

9988748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 174 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 53.

The square root of 9988748 is about 3160.4980620149. The cubic root of 9988748 is about 215.3626330129.

The spelling of 9988748 in words is "nine million, nine hundred eighty-eight thousand, seven hundred forty-eight".