9898118 has 4 divisors (see below), whose sum is σ = 14847180. Its totient is φ = 4949058.

The previous prime is 9898117. The next prime is 9898123. The reversal of 9898118 is 8118989.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8118989 = 1109 ⋅7321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9898117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2474528 + ... + 2474531.

It is an arithmetic number, because the mean of its divisors is an integer number (3711795).

Almost surely, 2^9898118 is an apocalyptic number.

9898118 is a deficient number, since it is larger than the sum of its proper divisors (4949062).

9898118 is a wasteful number, since it uses less digits than its factorization.

9898118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4949061.

The product of its digits is 41472, while the sum is 44.

The square root of 9898118 is about 3146.1274608636. The cubic root of 9898118 is about 214.7093096918.

The spelling of 9898118 in words is "nine million, eight hundred ninety-eight thousand, one hundred eighteen".