18066935 has 4 divisors (see below), whose sum is σ = 21680328. Its totient is φ = 14453544.

The previous prime is 18066899. The next prime is 18066943. The reversal of 18066935 is 53966081.

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

It is a cyclic number.

It is not a de Polignac number, because 18066935 - 2⁶ = 18066871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1806689 + ... + 1806698.

It is an arithmetic number, because the mean of its divisors is an integer number (5420082).

Almost surely, 2^18066935 is an apocalyptic number.

18066935 is a deficient number, since it is larger than the sum of its proper divisors (3613393).

18066935 is an equidigital number, since it uses as much as digits as its factorization.

18066935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3613392.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 18066935 is about 4250.5217326818. The cubic root of 18066935 is about 262.3985881886.

The spelling of 18066935 in words is "eighteen million, sixty-six thousand, nine hundred thirty-five".