680195306 has 16 divisors (see below), whose sum is σ = 1185814080. Its totient is φ = 286571040.

The previous prime is 680195303. The next prime is 680195317. The reversal of 680195306 is 603591086.

680195306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 680195306.

It is not an unprimeable number, because it can be changed into a prime (680195303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410915 + ... + 412566.

It is an arithmetic number, because the mean of its divisors is an integer number (74113380).

Almost surely, 2^680195306 is an apocalyptic number.

680195306 is a deficient number, since it is larger than the sum of its proper divisors (505618774).

680195306 is a wasteful number, since it uses less digits than its factorization.

680195306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823549.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 680195306 is about 26080.5541735600. The cubic root of 680195306 is about 879.4501153156.

The spelling of 680195306 in words is "six hundred eighty million, one hundred ninety-five thousand, three hundred six".