9039728 has 10 divisors (see below), whose sum is σ = 17514504. Its totient is φ = 4519856.

The previous prime is 9039727. The next prime is 9039781. The reversal of 9039728 is 8279309.

It is a junction number, because it is equal to n+sod(n) for n = 9039691 and 9039700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9039727) 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 as a sum of consecutive naturals, namely, 282476 + ... + 282507.

Almost surely, 2^9039728 is an apocalyptic number.

It is an amenable number.

9039728 is a deficient number, since it is larger than the sum of its proper divisors (8474776).

9039728 is a wasteful number, since it uses less digits than its factorization.

9039728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564991 (or 564985 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 9039728 is about 3006.6140424072. The cubic root of 9039728 is about 208.3139981345.

The spelling of 9039728 in words is "nine million, thirty-nine thousand, seven hundred twenty-eight".