28112083 has 4 divisors (see below), whose sum is σ = 28212408. Its totient is φ = 28011760.

The previous prime is 28112069. The next prime is 28112087. The reversal of 28112083 is 38021182.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38021182 = 2 ⋅19010591.

It is a cyclic number.

It is not a de Polignac number, because 28112083 - 2²¹ = 26014931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28112087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49741 + ... + 50302.

It is an arithmetic number, because the mean of its divisors is an integer number (7053102).

Almost surely, 2^28112083 is an apocalyptic number.

28112083 is a deficient number, since it is larger than the sum of its proper divisors (100325).

28112083 is a wasteful number, since it uses less digits than its factorization.

28112083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100324.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 28112083 is about 5302.0828925999. The cubic root of 28112083 is about 304.0635363217.

Subtracting 28112083 from its reverse (38021182), we obtain a palindrome (9909099).

The spelling of 28112083 in words is "twenty-eight million, one hundred twelve thousand, eighty-three".