680608567 has 2 divisors, whose sum is σ = 680608568. Its totient is φ = 680608566.

The previous prime is 680608561. The next prime is 680608573. The reversal of 680608567 is 765806086.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (680608561) and next prime (680608573).

It is a cyclic number.

It is not a de Polignac number, because 680608567 - 2³ = 680608559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (680608561) 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, 340304283 + 340304284.

It is an arithmetic number, because the mean of its divisors is an integer number (340304284).

Almost surely, 2^680608567 is an apocalyptic number.

680608567 is a deficient number, since it is larger than the sum of its proper divisors (1).

680608567 is an equidigital number, since it uses as much as digits as its factorization.

680608567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 680608567 is about 26088.4757507985. The cubic root of 680608567 is about 879.6281861584.

The spelling of 680608567 in words is "six hundred eighty million, six hundred eight thousand, five hundred sixty-seven".