89323218 has 48 divisors (see below), whose sum is σ = 208091520. Its totient is φ = 27602208.

The previous prime is 89323193. The next prime is 89323231. The reversal of 89323218 is 81232398.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13296 + ... + 18852.

It is an arithmetic number, because the mean of its divisors is an integer number (4335240).

Almost surely, 2^89323218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89323218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104045760).

89323218 is an abundant number, since it is smaller than the sum of its proper divisors (118768302).

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

89323218 is a wasteful number, since it uses less digits than its factorization.

89323218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5631 (or 5628 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 89323218 is about 9451.0961269051. The cubic root of 89323218 is about 447.0143382335.

The spelling of 89323218 in words is "eighty-nine million, three hundred twenty-three thousand, two hundred eighteen".