18336086 has 4 divisors (see below), whose sum is σ = 27504132. Its totient is φ = 9168042.

The previous prime is 18336077. The next prime is 18336107. The reversal of 18336086 is 68063381.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68063381 = 137 ⋅496813.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4584020 + ... + 4584023.

It is an arithmetic number, because the mean of its divisors is an integer number (6876033).

Almost surely, 2^18336086 is an apocalyptic number.

18336086 is a deficient number, since it is larger than the sum of its proper divisors (9168046).

18336086 is an equidigital number, since it uses as much as digits as its factorization.

18336086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9168045.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 18336086 is about 4282.0656230376. The cubic root of 18336086 is about 263.6951926728.

The spelling of 18336086 in words is "eighteen million, three hundred thirty-six thousand, eighty-six".