818323998 has 8 divisors (see below), whose sum is σ = 1636648008. Its totient is φ = 272774664.

The previous prime is 818323981. The next prime is 818324009. The reversal of 818323998 is 899323818.

It is a sphenic number, since it is the product of 3 distinct primes.

818323998 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 818323998.

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 in 3 ways as a sum of consecutive naturals, for example, 68193661 + ... + 68193672.

It is an arithmetic number, because the mean of its divisors is an integer number (204581001).

Almost surely, 2^818323998 is an apocalyptic number.

818323998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

818323998 is a wasteful number, since it uses less digits than its factorization.

818323998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136387338.

The product of its digits is 746496, while the sum is 51.

The square root of 818323998 is about 28606.3628935941. The cubic root of 818323998 is about 935.3520357403.

The spelling of 818323998 in words is "eight hundred eighteen million, three hundred twenty-three thousand, nine hundred ninety-eight".