8224728 has 16 divisors (see below), whose sum is σ = 20561880. Its totient is φ = 2741568.

The previous prime is 8224709. The next prime is 8224729. The reversal of 8224728 is 8274228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8224729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171325 + ... + 171372.

Almost surely, 2^8224728 is an apocalyptic number.

It is an amenable number.

8224728 is an abundant number, since it is smaller than the sum of its proper divisors (12337152).

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

8224728 is a wasteful number, since it uses less digits than its factorization.

8224728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342706 (or 342702 counting only the distinct ones).

The product of its digits is 14336, while the sum is 33.

The square root of 8224728 is about 2867.8786585210. The cubic root of 8224728 is about 201.8554663243.

The spelling of 8224728 in words is "eight million, two hundred twenty-four thousand, seven hundred twenty-eight".