818809086 has 16 divisors (see below), whose sum is σ = 1640024064. Its totient is φ = 272535384.

The previous prime is 818809051. The next prime is 818809091. The reversal of 818809086 is 680908818.

818809086 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95806 + ... + 104001.

It is an arithmetic number, because the mean of its divisors is an integer number (102501504).

Almost surely, 2^818809086 is an apocalyptic number.

818809086 is an abundant number, since it is smaller than the sum of its proper divisors (821214978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

818809086 is a wasteful number, since it uses less digits than its factorization.

818809086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200495.

The product of its (nonzero) digits is 221184, while the sum is 48.

The square root of 818809086 is about 28614.8403105801. The cubic root of 818809086 is about 935.5368192836.

The spelling of 818809086 in words is "eight hundred eighteen million, eight hundred nine thousand, eighty-six".