9666228 has 96 divisors (see below), whose sum is σ = 27320832. Its totient is φ = 2620800.

The previous prime is 9666227. The next prime is 9666247. The reversal of 9666228 is 8226669.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9666227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73723 + ... + 73853.

It is an arithmetic number, because the mean of its divisors is an integer number (284592).

Almost surely, 2^9666228 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 9666228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13660416).

9666228 is an abundant number, since it is smaller than the sum of its proper divisors (17654604).

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

9666228 is a wasteful number, since it uses less digits than its factorization.

9666228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 203 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 9666228 is about 3109.0558052245. The cubic root of 9666228 is about 213.0193286258.

The spelling of 9666228 in words is "nine million, six hundred sixty-six thousand, two hundred twenty-eight".