680371764 has 12 divisors (see below), whose sum is σ = 1587534144. Its totient is φ = 226790584.

The previous prime is 680371751. The next prime is 680371789. The reversal of 680371764 is 467173086.

It is a tau number, because it is divible by the number of its divisors (12).

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, 28348812 + ... + 28348835.

It is an arithmetic number, because the mean of its divisors is an integer number (132294512).

Almost surely, 2^680371764 is an apocalyptic number.

It is an amenable number.

680371764 is an abundant number, since it is smaller than the sum of its proper divisors (907162380).

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

680371764 is a wasteful number, since it uses less digits than its factorization.

680371764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56697654 (or 56697652 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 680371764 is about 26083.9368961052. The cubic root of 680371764 is about 879.5261584703.

The spelling of 680371764 in words is "six hundred eighty million, three hundred seventy-one thousand, seven hundred sixty-four".