888888889 has 32 divisors (see below), whose sum is σ = 1114928640.
Its totient is φ = 691891200.
The previous prime is 888888887. The next prime is 888888901. The reversal of 888888889 is 988888888.
It is not a de Polignac number, because 888888889 - 21 = 888888887 is a prime.
It is a plaindrome in base 10.
It is not an unprimeable number, because it can be changed into a prime (888888883) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 283249 + ... + 286369.
It is an arithmetic number, because the mean of its divisors is an integer number (34841520).
Almost surely, 2888888889 is an apocalyptic number.
It is an amenable number.
888888889 is a deficient number, since it is larger than the sum of its proper divisors (226039751).
888888889 is a wasteful number, since it uses less digits than its factorization.
888888889 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3241.
The product of its digits is 150994944, while the sum is 73.
The square root of 888888889 is about 29814.2397018606.
The cubic root of 888888889 is about 961.4997135783.
Subtracting 888888889 from its reverse (988888888), we obtain a palindrome (99999999).
The spelling of 888888889 in words is "eight hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred eighty-nine".