18085027 has 4 divisors (see below), whose sum is σ = 18095616. Its totient is φ = 18074440.

The previous prime is 18085019. The next prime is 18085051. The reversal of 18085027 is 72058081.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 72058081 = 73 ⋅987097.

It is a cyclic number.

It is not a de Polignac number, because 18085027 - 2³ = 18085019 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 18085027.

It is not an unprimeable number, because it can be changed into a prime (18085057) 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, 2083 + ... + 6364.

It is an arithmetic number, because the mean of its divisors is an integer number (4523904).

Almost surely, 2^18085027 is an apocalyptic number.

18085027 is a deficient number, since it is larger than the sum of its proper divisors (10589).

18085027 is an equidigital number, since it uses as much as digits as its factorization.

18085027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10588.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 18085027 is about 4252.6494094858. The cubic root of 18085027 is about 262.4861465100.

The spelling of 18085027 in words is "eighteen million, eighty-five thousand, twenty-seven".