8328728 has 8 divisors (see below), whose sum is σ = 15616380. Its totient is φ = 4164360.

The previous prime is 8328701. The next prime is 8328731. The reversal of 8328728 is 8278238.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 8328691 and 8328700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520538 + ... + 520553.

Almost surely, 2^8328728 is an apocalyptic number.

It is an amenable number.

8328728 is a deficient number, since it is larger than the sum of its proper divisors (7287652).

8328728 is a wasteful number, since it uses less digits than its factorization.

8328728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041097 (or 1041093 counting only the distinct ones).

The product of its digits is 43008, while the sum is 38.

The square root of 8328728 is about 2885.9535685801. The cubic root of 8328728 is about 202.7027122137.

The spelling of 8328728 in words is "eight million, three hundred twenty-eight thousand, seven hundred twenty-eight".