998898 has 16 divisors (see below), whose sum is σ = 2009280. Its totient is φ = 331056.

The previous prime is 998897. The next prime is 998909. The reversal of 998898 is 898899.

It is a self number, because there is not a number n which added to its sum of digits gives 998898.

It is not an unprimeable number, because it can be changed into a prime (998897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1011 + ... + 1737.

It is an arithmetic number, because the mean of its divisors is an integer number (125580).

2⁹⁹⁸⁸⁹⁸ is an apocalyptic number.

998898 is an abundant number, since it is smaller than the sum of its proper divisors (1010382).

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

998898 is a wasteful number, since it uses less digits than its factorization.

998898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961.

The product of its digits is 373248, while the sum is 51.

The square root of 998898 is about 999.4488481158. The cubic root of 998898 is about 99.9632531650.

Subtracting from 998898 its reverse (898899), we obtain a palindrome (99999).

The spelling of 998898 in words is "nine hundred ninety-eight thousand, eight hundred ninety-eight".