18091714 has 4 divisors (see below), whose sum is σ = 27137574. Its totient is φ = 9045856.

The previous prime is 18091699. The next prime is 18091721. The reversal of 18091714 is 41719081.

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., 17081689 + 1010025 = 4133^2 + 1005^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4522927 + ... + 4522930.

Almost surely, 2^18091714 is an apocalyptic number.

18091714 is a deficient number, since it is larger than the sum of its proper divisors (9045860).

18091714 is an equidigital number, since it uses as much as digits as its factorization.

18091714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9045859.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 18091714 is about 4253.4355525857. The cubic root of 18091714 is about 262.5184942374.

The spelling of 18091714 in words is "eighteen million, ninety-one thousand, seven hundred fourteen".