9898018 has 16 divisors (see below), whose sum is σ = 16422840. Its totient is φ = 4444416.

The previous prime is 9898003. The next prime is 9898081. The reversal of 9898018 is 8108989.

It can be written as a sum of positive squares in 4 ways, for example, as 9715689 + 182329 = 3117^2 + 427^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4183 + ... + 6106.

Almost surely, 2^9898018 is an apocalyptic number.

9898018 is a deficient number, since it is larger than the sum of its proper divisors (6524822).

9898018 is a wasteful number, since it uses less digits than its factorization.

9898018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10341.

The product of its (nonzero) digits is 41472, while the sum is 43.

The square root of 9898018 is about 3146.1115682696. Note that the first 3 decimals coincide. The cubic root of 9898018 is about 214.7085866250.

The spelling of 9898018 in words is "nine million, eight hundred ninety-eight thousand, eighteen".