680608573 has 2 divisors, whose sum is σ = 680608574. Its totient is φ = 680608572.

The previous prime is 680608567. The next prime is 680608597. The reversal of 680608573 is 375806086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 612414009 + 68194564 = 24747^2 + 8258^2 .

It is a cyclic number.

It is not a de Polignac number, because 680608573 - 2⁵ = 680608541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (680608373) by changing a digit.

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 as a sum of consecutive naturals, namely, 340304286 + 340304287.

It is an arithmetic number, because the mean of its divisors is an integer number (340304287).

Almost surely, 2^680608573 is an apocalyptic number.

It is an amenable number.

680608573 is a deficient number, since it is larger than the sum of its proper divisors (1).

680608573 is an equidigital number, since it uses as much as digits as its factorization.

680608573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 680608573 is about 26088.4758657918. The cubic root of 680608573 is about 879.6281887432.

The spelling of 680608573 in words is "six hundred eighty million, six hundred eight thousand, five hundred seventy-three".