8399328 has 96 divisors (see below), whose sum is σ = 26127360. Its totient is φ = 2311680.

The previous prime is 8399317. The next prime is 8399381. The reversal of 8399328 is 8239938.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 8399328.

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 15 ways as a sum of consecutive naturals, for example, 19273 + ... + 19703.

It is an arithmetic number, because the mean of its divisors is an integer number (272160).

Almost surely, 2^8399328 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 8399328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13063680).

8399328 is an abundant number, since it is smaller than the sum of its proper divisors (17728032).

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

8399328 is a wasteful number, since it uses less digits than its factorization.

8399328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 472 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 8399328 is about 2898.1594159052. The cubic root of 8399328 is about 203.2738504378.

The spelling of 8399328 in words is "eight million, three hundred ninety-nine thousand, three hundred twenty-eight".