8921328 has 120 divisors (see below), whose sum is σ = 27217008. Its totient is φ = 2494464.

The previous prime is 8921321. The next prime is 8921333. The reversal of 8921328 is 8231298.

Its product of digits (6912) is a multiple of the sum of its prime divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8921321) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 307618 + ... + 307646.

Almost surely, 2^8921328 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 8921328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13608504).

8921328 is an abundant number, since it is smaller than the sum of its proper divisors (18295680).

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

8921328 is a wasteful number, since it uses less digits than its factorization.

8921328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 64 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 8921328 is about 2986.8592199834. The cubic root of 8921328 is about 207.4005174645.

The spelling of 8921328 in words is "eight million, nine hundred twenty-one thousand, three hundred twenty-eight".