820344968 has 16 divisors (see below), whose sum is σ = 1564218000. Its totient is φ = 403220176.

The previous prime is 820344929. The next prime is 820344977. The reversal of 820344968 is 869443028.

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, 868538 + ... + 869481.

It is an arithmetic number, because the mean of its divisors is an integer number (97763625).

Almost surely, 2^820344968 is an apocalyptic number.

It is an amenable number.

820344968 is a deficient number, since it is larger than the sum of its proper divisors (743873032).

820344968 is a wasteful number, since it uses less digits than its factorization.

820344968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738084 (or 1738080 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 820344968 is about 28641.6648957424. The cubic root of 820344968 is about 936.1213986500.

The spelling of 820344968 in words is "eight hundred twenty million, three hundred forty-four thousand, nine hundred sixty-eight".