889000000 has 196 divisors, whose sum is σ = 2539967488. Its totient is φ = 302400000.

The previous prime is 888999997. The next prime is 889000001. The reversal of 889000000 is 988.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889000001) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 6999937 + ... + 7000063.

Almost surely, 2^889000000 is an apocalyptic number.

889000000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 889000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1269983744).

889000000 is an abundant number, since it is smaller than the sum of its proper divisors (1650967488).

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

889000000 is an frugal number, since it uses more digits than its factorization.

889000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 889000000 is about 29816.1030317511. The cubic root of 889000000 is about 961.5397743572.

Adding to 889000000 its reverse (988), we get a palindrome (889000988).

The spelling of 889000000 in words is "eight hundred eighty-nine million", and thus it is an aban number.