680745836 has 12 divisors (see below), whose sum is σ = 1199301600. Its totient is φ = 338088240.

The previous prime is 680745827. The next prime is 680745839. The reversal of 680745836 is 638547086.

680745836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (680745839) 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, 570500 + ... + 571691.

It is an arithmetic number, because the mean of its divisors is an integer number (99941800).

Almost surely, 2^680745836 is an apocalyptic number.

It is an amenable number.

680745836 is a deficient number, since it is larger than the sum of its proper divisors (518555764).

680745836 is a wasteful number, since it uses less digits than its factorization.

680745836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142344 (or 1142342 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The square root of 680745836 is about 26091.1064541157. The cubic root of 680745836 is about 879.6873183188.

The spelling of 680745836 in words is "six hundred eighty million, seven hundred forty-five thousand, eight hundred thirty-six".