889197912 has 80 divisors (see below), whose sum is σ = 2557959360. Its totient is φ = 288380736.

The previous prime is 889197901. The next prime is 889197919. The reversal of 889197912 is 219791988.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889197919) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5433 + ... + 42519.

It is an arithmetic number, because the mean of its divisors is an integer number (31974492).

Almost surely, 2^889197912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 889197912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1278979680).

889197912 is an abundant number, since it is smaller than the sum of its proper divisors (1668761448).

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

889197912 is a wasteful number, since it uses less digits than its factorization.

889197912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37142 (or 37129 counting only the distinct ones).

The product of its digits is 653184, while the sum is 54.

The square root of 889197912 is about 29819.4217247753. The cubic root of 889197912 is about 961.6111227411.

The spelling of 889197912 in words is "eight hundred eighty-nine million, one hundred ninety-seven thousand, nine hundred twelve".