18822086 has 4 divisors (see below), whose sum is σ = 28233132. Its totient is φ = 9411042.

The previous prime is 18822079. The next prime is 18822091. The reversal of 18822086 is 68022881.

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, 4705520 + ... + 4705523.

It is an arithmetic number, because the mean of its divisors is an integer number (7058283).

Almost surely, 2^18822086 is an apocalyptic number.

18822086 is a deficient number, since it is larger than the sum of its proper divisors (9411046).

18822086 is an equidigital number, since it uses as much as digits as its factorization.

18822086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9411045.

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 18822086 is about 4338.4428081974. The cubic root of 18822086 is about 266.0046638337.

The spelling of 18822086 in words is "eighteen million, eight hundred twenty-two thousand, eighty-six".