28162083 has 4 divisors (see below), whose sum is σ = 37549448. Its totient is φ = 18774720.

The previous prime is 28162073. The next prime is 28162093. The reversal of 28162083 is 38026182.

Added to its reverse (38026182) it gives a triangular number (66188265 = T₁₁₅₀₅).

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

It is an interprime number because it is at equal distance from previous prime (28162073) and next prime (28162093).

It is not a de Polignac number, because 28162083 - 2⁴ = 28162067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28162083.

It is not an unprimeable number, because it can be changed into a prime (28162073) 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 in 3 ways as a sum of consecutive naturals, for example, 4693678 + ... + 4693683.

It is an arithmetic number, because the mean of its divisors is an integer number (9387362).

Almost surely, 2^28162083 is an apocalyptic number.

28162083 is a deficient number, since it is larger than the sum of its proper divisors (9387365).

28162083 is an equidigital number, since it uses as much as digits as its factorization.

28162083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9387364.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 28162083 is about 5306.7959259802. The cubic root of 28162083 is about 304.2436981437.

Adding to 28162083 its reverse (38026182), we get a triangular number (66188265 = T₁₁₅₀₅).

The spelling of 28162083 in words is "twenty-eight million, one hundred sixty-two thousand, eighty-three".