18084663 has 6 divisors (see below), whose sum is σ = 26122304. Its totient is φ = 12056436.

The previous prime is 18084641. The next prime is 18084667. The reversal of 18084663 is 36648081.

It is a happy number.

It is not a de Polignac number, because 18084663 - 2¹⁴ = 18068279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18084667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1004695 + ... + 1004712.

Almost surely, 2^18084663 is an apocalyptic number.

18084663 is a deficient number, since it is larger than the sum of its proper divisors (8037641).

18084663 is a wasteful number, since it uses less digits than its factorization.

18084663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009413 (or 2009410 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 18084663 is about 4252.6066124202. The cubic root of 18084663 is about 262.4843854658.

The spelling of 18084663 in words is "eighteen million, eighty-four thousand, six hundred sixty-three".