8280728 has 16 divisors (see below), whose sum is σ = 15580680. Its totient is φ = 4125888.

The previous prime is 8280721. The next prime is 8280737. The reversal of 8280728 is 8270828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8280721) 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, 851 + ... + 4157.

Almost surely, 2^8280728 is an apocalyptic number.

It is an amenable number.

8280728 is a deficient number, since it is larger than the sum of its proper divisors (7299952).

8280728 is a wasteful number, since it uses less digits than its factorization.

8280728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3626 (or 3622 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 8280728 is about 2877.6254099518. The cubic root of 8280728 is about 202.3125573315.

The spelling of 8280728 in words is "eight million, two hundred eighty thousand, seven hundred twenty-eight".