817342818 has 8 divisors (see below), whose sum is σ = 1634685648. Its totient is φ = 272447604.

The previous prime is 817342811. The next prime is 817342837. The reversal of 817342818 is 818243718.

817342818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

817342818 is an admirable number.

It is a super-2 number, since 2×817342818² = 1336098564272362248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 817342818.

It is not an unprimeable number, because it can be changed into a prime (817342811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68111896 + ... + 68111907.

It is an arithmetic number, because the mean of its divisors is an integer number (204335706).

Almost surely, 2^817342818 is an apocalyptic number.

817342818 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.

817342818 is a wasteful number, since it uses less digits than its factorization.

817342818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136223808.

The product of its digits is 86016, while the sum is 42.

The square root of 817342818 is about 28589.2080687801. The cubic root of 817342818 is about 934.9780535709.

The spelling of 817342818 in words is "eight hundred seventeen million, three hundred forty-two thousand, eight hundred eighteen".