680359679 has 2 divisors, whose sum is σ = 680359680. Its totient is φ = 680359678.

The previous prime is 680359661. The next prime is 680359681. The reversal of 680359679 is 976953086.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 680359679 - 2⁸ = 680359423 is a prime.

Together with 680359681, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 680359679.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (680359609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340179839 + 340179840.

It is an arithmetic number, because the mean of its divisors is an integer number (340179840).

Almost surely, 2^680359679 is an apocalyptic number.

680359679 is a deficient number, since it is larger than the sum of its proper divisors (1).

680359679 is an equidigital number, since it uses as much as digits as its factorization.

680359679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The square root of 680359679 is about 26083.7052390952. The cubic root of 680359679 is about 879.5209509563.

The spelling of 680359679 in words is "six hundred eighty million, three hundred fifty-nine thousand, six hundred seventy-nine".