680715353 has 2 divisors, whose sum is σ = 680715354. Its totient is φ = 680715352.

The previous prime is 680715323. The next prime is 680715367. The reversal of 680715353 is 353517086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 468809104 + 211906249 = 21652^2 + 14557^2 .

It is a cyclic number.

It is not a de Polignac number, because 680715353 - 2¹² = 680711257 is a prime.

It is not a weakly prime, because it can be changed into another prime (680715323) 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, 340357676 + 340357677.

It is an arithmetic number, because the mean of its divisors is an integer number (340357677).

Almost surely, 2^680715353 is an apocalyptic number.

It is an amenable number.

680715353 is a deficient number, since it is larger than the sum of its proper divisors (1).

680715353 is an equidigital number, since it uses as much as digits as its factorization.

680715353 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 38.

The square root of 680715353 is about 26090.5222830054. The cubic root of 680715353 is about 879.6741876674.

The spelling of 680715353 in words is "six hundred eighty million, seven hundred fifteen thousand, three hundred fifty-three".