9998898 has 32 divisors (see below), whose sum is σ = 24614016. Its totient is φ = 2636928.

The previous prime is 9998893. The next prime is 9998903. The reversal of 9998898 is 8988999.

It is an interprime number because it is at equal distance from previous prime (9998893) and next prime (9998903).

It is a super-2 number, since 2×9998898² = 199955922428808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9998893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8611 + ... + 9702.

It is an arithmetic number, because the mean of its divisors is an integer number (769188).

Almost surely, 2^9998898 is an apocalyptic number.

9998898 is an abundant number, since it is smaller than the sum of its proper divisors (14615118).

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

9998898 is a wasteful number, since it uses less digits than its factorization.

9998898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18338.

The product of its digits is 3359232, while the sum is 60.

The square root of 9998898 is about 3162.1034138687. The cubic root of 9998898 is about 215.4355547557.

The spelling of 9998898 in words is "nine million, nine hundred ninety-eight thousand, eight hundred ninety-eight".