8999889998 has 32 divisors (see below), whose sum is σ = 15600999168. Its totient is φ = 3848342400.

The previous prime is 8999889991. The next prime is 8999890001.

8999889998 is nontrivially palindromic in base 10.

8999889998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×8999889998² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8999889991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 985433 + ... + 994523.

It is an arithmetic number, because the mean of its divisors is an integer number (487531224).

Almost surely, 2^8999889998 is an apocalyptic number.

8999889998 is a deficient number, since it is larger than the sum of its proper divisors (6601109170).

8999889998 is a wasteful number, since it uses less digits than its factorization.

8999889998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11768.

The product of its digits is 2176782336, while the sum is 86.

The square root of 8999889998 is about 94867.7500418346. The cubic root of 8999889998 is about 2080.0753484477.

The spelling of 8999889998 in words is "eight billion, nine hundred ninety-nine million, eight hundred eighty-nine thousand, nine hundred ninety-eight".