680306716 has 24 divisors (see below), whose sum is σ = 1223855360. Its totient is φ = 330651072.

The previous prime is 680306713. The next prime is 680306729. The reversal of 680306716 is 617603086.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680306713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302725 + ... + 304963.

Almost surely, 2^680306716 is an apocalyptic number.

It is an amenable number.

680306716 is a deficient number, since it is larger than the sum of its proper divisors (543548644).

680306716 is a wasteful number, since it uses less digits than its factorization.

680306716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4333 (or 4331 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 680306716 is about 26082.6899686363. The cubic root of 680306716 is about 879.4981280885.

The spelling of 680306716 in words is "six hundred eighty million, three hundred six thousand, seven hundred sixteen".