680355703 has 2 divisors, whose sum is σ = 680355704. Its totient is φ = 680355702.

The previous prime is 680355701. The next prime is 680355733. The reversal of 680355703 is 307553086.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 680355703 - 2¹ = 680355701 is a prime.

Together with 680355701, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (680355701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340177851 + 340177852.

It is an arithmetic number, because the mean of its divisors is an integer number (340177852).

Almost surely, 2^680355703 is an apocalyptic number.

680355703 is a deficient number, since it is larger than the sum of its proper divisors (1).

680355703 is an equidigital number, since it uses as much as digits as its factorization.

680355703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 680355703 is about 26083.6290228181. The cubic root of 680355703 is about 879.5192376556.

The spelling of 680355703 in words is "six hundred eighty million, three hundred fifty-five thousand, seven hundred three".