680620627 has 2 divisors, whose sum is σ = 680620628. Its totient is φ = 680620626.

The previous prime is 680620621. The next prime is 680620657. The reversal of 680620627 is 726026086.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-680620627 is a prime.

It is not a weakly prime, because it can be changed into another prime (680620621) 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, 340310313 + 340310314.

It is an arithmetic number, because the mean of its divisors is an integer number (340310314).

Almost surely, 2^680620627 is an apocalyptic number.

680620627 is a deficient number, since it is larger than the sum of its proper divisors (1).

680620627 is an equidigital number, since it uses as much as digits as its factorization.

680620627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 680620627 is about 26088.7068863139. The cubic root of 680620627 is about 879.6333816329.

The spelling of 680620627 in words is "six hundred eighty million, six hundred twenty thousand, six hundred twenty-seven".