28328083 has 16 divisors (see below), whose sum is σ = 33269760. Its totient is φ = 23619456.

The previous prime is 28328081. The next prime is 28328117. The reversal of 28328083 is 38082382.

It is not a de Polignac number, because 28328083 - 2¹ = 28328081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28328081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46366 + ... + 46972.

It is an arithmetic number, because the mean of its divisors is an integer number (2079360).

Almost surely, 2^28328083 is an apocalyptic number.

28328083 is a deficient number, since it is larger than the sum of its proper divisors (4941677).

28328083 is a wasteful number, since it uses less digits than its factorization.

28328083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 28328083 is about 5322.4132684338. The cubic root of 28328083 is about 304.8403105650.

The spelling of 28328083 in words is "twenty-eight million, three hundred twenty-eight thousand, eighty-three".