8947224 has 144 divisors (see below), whose sum is σ = 29047200. Its totient is φ = 2471040.

The previous prime is 8947217. The next prime is 8947319. The reversal of 8947224 is 4227498.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

Its product of digits (32256) is a multiple of the sum of its prime factors (126).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 113217 + ... + 113295.

Almost surely, 2^8947224 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 8947224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14523600).

8947224 is an abundant number, since it is smaller than the sum of its proper divisors (20099976).

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

8947224 is a wasteful number, since it uses less digits than its factorization.

8947224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 108 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 8947224 is about 2991.1910671169. The cubic root of 8947224 is about 207.6009979125.

It can be divided in two parts, 894 and 7224, that added together give a palindrome (8118).

The spelling of 8947224 in words is "eight million, nine hundred forty-seven thousand, two hundred twenty-four".