18086673 has 16 divisors (see below), whose sum is σ = 27020736. Its totient is φ = 10664640.

The previous prime is 18086647. The next prime is 18086707. The reversal of 18086673 is 37668081.

It is not a de Polignac number, because 18086673 - 2⁵ = 18086641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18086473) 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 15 ways as a sum of consecutive naturals, for example, 6186 + ... + 8627.

It is an arithmetic number, because the mean of its divisors is an integer number (1688796).

Almost surely, 2^18086673 is an apocalyptic number.

It is an amenable number.

18086673 is a deficient number, since it is larger than the sum of its proper divisors (8934063).

18086673 is a wasteful number, since it uses less digits than its factorization.

18086673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14864.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 18086673 is about 4252.8429314989. The cubic root of 18086673 is about 262.4941096184.

The spelling of 18086673 in words is "eighteen million, eighty-six thousand, six hundred seventy-three".