28565083 has 8 divisors (see below), whose sum is σ = 30321648. Its totient is φ = 26817024.

The previous prime is 28565063. The next prime is 28565099. The reversal of 28565083 is 38056582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-28565083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28565003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5635 + ... + 9427.

It is an arithmetic number, because the mean of its divisors is an integer number (3790206).

Almost surely, 2^28565083 is an apocalyptic number.

28565083 is a deficient number, since it is larger than the sum of its proper divisors (1756565).

28565083 is a wasteful number, since it uses less digits than its factorization.

28565083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4253.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 28565083 is about 5344.6312314322. The cubic root of 28565083 is about 305.6880747839.

The spelling of 28565083 in words is "twenty-eight million, five hundred sixty-five thousand, eighty-three".