18087094 has 4 divisors (see below), whose sum is σ = 27130644. Its totient is φ = 9043546.

The previous prime is 18087079. The next prime is 18087101. The reversal of 18087094 is 49078081.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4521772 + ... + 4521775.

It is an arithmetic number, because the mean of its divisors is an integer number (6782661).

Almost surely, 2^18087094 is an apocalyptic number.

18087094 is a deficient number, since it is larger than the sum of its proper divisors (9043550).

18087094 is an equidigital number, since it uses as much as digits as its factorization.

18087094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9043549.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 18087094 is about 4252.8924275133. The cubic root of 18087094 is about 262.4961462775.

The spelling of 18087094 in words is "eighteen million, eighty-seven thousand, ninety-four".