8217328 has 20 divisors (see below), whose sum is σ = 18195760. Its totient is φ = 3521664.

The previous prime is 8217323. The next prime is 8217331. The reversal of 8217328 is 8237128.

It is a self number, because there is not a number n which added to its sum of digits gives 8217328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8217323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36573 + ... + 36796.

It is an arithmetic number, because the mean of its divisors is an integer number (909788).

Almost surely, 2^8217328 is an apocalyptic number.

It is an amenable number.

8217328 is an abundant number, since it is smaller than the sum of its proper divisors (9978432).

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

8217328 is a wasteful number, since it uses less digits than its factorization.

8217328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73384 (or 73378 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 8217328 is about 2866.5882159808. The cubic root of 8217328 is about 201.7949099688.

The spelling of 8217328 in words is "eight million, two hundred seventeen thousand, three hundred twenty-eight".