89718228 has 72 divisors (see below), whose sum is σ = 247010400. Its totient is φ = 27349056.

The previous prime is 89718221. The next prime is 89718259. The reversal of 89718228 is 82281798.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89718221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17575 + ... + 22097.

It is an arithmetic number, because the mean of its divisors is an integer number (3430700).

Almost surely, 2^89718228 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 89718228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123505200).

89718228 is an abundant number, since it is smaller than the sum of its proper divisors (157292172).

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

89718228 is a wasteful number, since it uses less digits than its factorization.

89718228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4581 (or 4576 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 89718228 is about 9471.9706502924. The cubic root of 89718228 is about 447.6723063355.

The spelling of 89718228 in words is "eighty-nine million, seven hundred eighteen thousand, two hundred twenty-eight".