28811083 has 4 divisors (see below), whose sum is σ = 32926960. Its totient is φ = 24695208.

The previous prime is 28811071. The next prime is 28811099. The reversal of 28811083 is 38011882.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28811083 - 2⁵ = 28811051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28811023) 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 3 ways as a sum of consecutive naturals, for example, 2057928 + ... + 2057941.

It is an arithmetic number, because the mean of its divisors is an integer number (8231740).

Almost surely, 2^28811083 is an apocalyptic number.

28811083 is a deficient number, since it is larger than the sum of its proper divisors (4115877).

28811083 is an equidigital number, since it uses as much as digits as its factorization.

28811083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115876.

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 28811083 is about 5367.5956442340. The cubic root of 28811083 is about 306.5630873937.

The spelling of 28811083 in words is "twenty-eight million, eight hundred eleven thousand, eighty-three".