817326812 has 6 divisors (see below), whose sum is σ = 1430321928. Its totient is φ = 408663404.

The previous prime is 817326803. The next prime is 817326859. The reversal of 817326812 is 218623718.

It is a super-2 number, since 2×817326812² = 1336046235228166688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102165848 + ... + 102165855.

It is an arithmetic number, because the mean of its divisors is an integer number (238386988).

Almost surely, 2^817326812 is an apocalyptic number.

It is an amenable number.

817326812 is a deficient number, since it is larger than the sum of its proper divisors (612995116).

817326812 is a wasteful number, since it uses less digits than its factorization.

817326812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204331707 (or 204331705 counting only the distinct ones).

The product of its digits is 32256, while the sum is 38.

The square root of 817326812 is about 28588.9281366056. The cubic root of 817326812 is about 934.9719503153.

The spelling of 817326812 in words is "eight hundred seventeen million, three hundred twenty-six thousand, eight hundred twelve".