18086005 has 16 divisors (see below), whose sum is σ = 26110080. Its totient is φ = 11748672.

The previous prime is 18085997. The next prime is 18086009. The reversal of 18086005 is 50068081.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 18086005 - 2³ = 18085997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18086009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12934 + ... + 14263.

It is an arithmetic number, because the mean of its divisors is an integer number (1631880).

Almost surely, 2^18086005 is an apocalyptic number.

It is an amenable number.

18086005 is a deficient number, since it is larger than the sum of its proper divisors (8024075).

18086005 is a wasteful number, since it uses less digits than its factorization.

18086005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27228.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 18086005 is about 4252.7643950729. The cubic root of 18086005 is about 262.4908779899.

The spelling of 18086005 in words is "eighteen million, eighty-six thousand, five".