18683066 has 4 divisors (see below), whose sum is σ = 28024602. Its totient is φ = 9341532.

The previous prime is 18683057. The next prime is 18683143. The reversal of 18683066 is 66038681.

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

It can be written as a sum of positive squares in only one way, i.e., 15721225 + 2961841 = 3965^2 + 1721^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4670765 + ... + 4670768.

Almost surely, 2^18683066 is an apocalyptic number.

18683066 is a deficient number, since it is larger than the sum of its proper divisors (9341536).

18683066 is an equidigital number, since it uses as much as digits as its factorization.

18683066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9341535.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 18683066 is about 4322.3912363413. The cubic root of 18683066 is about 265.3481409854.

The spelling of 18683066 in words is "eighteen million, six hundred eighty-three thousand, sixty-six".