889999998 has 32 divisors (see below), whose sum is σ = 1842561024. Its totient is φ = 286366752.

The previous prime is 889999991. The next prime is 890000003. The reversal of 889999998 is 899999988.

889999998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889999991) 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, 12411 + ... + 43977.

It is an arithmetic number, because the mean of its divisors is an integer number (57580032).

Almost surely, 2^889999998 is an apocalyptic number.

889999998 is an abundant number, since it is smaller than the sum of its proper divisors (952561026).

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

889999998 is a wasteful number, since it uses less digits than its factorization.

889999998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31736.

The product of its digits is 272097792, while the sum is 78.

The square root of 889999998 is about 29832.8677468325. The cubic root of 889999998 is about 961.9001708872.

The spelling of 889999998 in words is "eight hundred eighty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-eight".