9988898 has 8 divisors (see below), whose sum is σ = 14999580. Its totient is φ = 4989040.

The previous prime is 9988879. The next prime is 9988907. The reversal of 9988898 is 8988899.

It can be written as a sum of positive squares in 2 ways, for example, as 6723649 + 3265249 = 2593^2 + 1807^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 248 + ... + 4476.

Almost surely, 2^9988898 is an apocalyptic number.

9988898 is a deficient number, since it is larger than the sum of its proper divisors (5010682).

9988898 is a wasteful number, since it uses less digits than its factorization.

9988898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5412.

The product of its digits is 2985984, while the sum is 59.

The square root of 9988898 is about 3160.5217923628. The cubic root of 9988898 is about 215.3637110337.

Subtracting from 9988898 its reverse (8988899), we obtain a palindrome (999999).

The spelling of 9988898 in words is "nine million, nine hundred eighty-eight thousand, eight hundred ninety-eight".