889144844 has 24 divisors (see below), whose sum is σ = 1783585440. Its totient is φ = 379927296.

The previous prime is 889144831. The next prime is 889144849. The reversal of 889144844 is 448441988.

It is a happy number.

It is a super-2 number, since 2×889144844² = 1581157107223568672, which contains 22 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 889144792 and 889144801.

It is not an unprimeable number, because it can be changed into a prime (889144849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37679 + ... + 56550.

It is an arithmetic number, because the mean of its divisors is an integer number (74316060).

Almost surely, 2^889144844 is an apocalyptic number.

It is an amenable number.

889144844 is an abundant number, since it is smaller than the sum of its proper divisors (894440596).

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

889144844 is a wasteful number, since it uses less digits than its factorization.

889144844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94577 (or 94575 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 50.

The square root of 889144844 is about 29818.5318887433. The cubic root of 889144844 is about 961.5919924689.

It can be divided in two parts, 889144 and 844, that added together give a palindrome (889988).

The spelling of 889144844 in words is "eight hundred eighty-nine million, one hundred forty-four thousand, eight hundred forty-four".