889812 has 96 divisors (see below), whose sum is σ = 2903040. Its totient is φ = 228960.

The previous prime is 889783. The next prime is 889829. The reversal of 889812 is 218988.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

889812 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 31 ways as a sum of consecutive naturals, for example, 8263 + ... + 8369.

It is an arithmetic number, because the mean of its divisors is an integer number (30240).

2⁸⁸⁹⁸¹² 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 889812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1451520).

889812 is an abundant number, since it is smaller than the sum of its proper divisors (2013228).

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

889812 is a wasteful number, since it uses less digits than its factorization.

889812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 130 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

The square root of 889812 is about 943.2984681425. The cubic root of 889812 is about 96.1832437538.

The spelling of 889812 in words is "eight hundred eighty-nine thousand, eight hundred twelve".