8888889 has 4 divisors (see below), whose sum is σ = 11851856. Its totient is φ = 5925924.

The previous prime is 8888861. The next prime is 8888927. The reversal of 8888889 is 9888888.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8888889 - 2¹¹ = 8886841 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (8888839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1481479 + ... + 1481484.

It is an arithmetic number, because the mean of its divisors is an integer number (2962964).

Almost surely, 2^8888889 is an apocalyptic number.

It is an amenable number.

8888889 is a deficient number, since it is larger than the sum of its proper divisors (2962967).

8888889 is a wasteful number, since it uses less digits than its factorization.

8888889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2962966.

The product of its digits is 2359296, while the sum is 57.

The square root of 8888889 is about 2981.4239886336. The cubic root of 8888889 is about 207.1488345934.

Subtracting 8888889 from its reverse (9888888), we obtain a palindrome (999999).

The spelling of 8888889 in words is "eight million, eight hundred eighty-eight thousand, eight hundred eighty-nine".