680707487 has 2 divisors, whose sum is σ = 680707488. Its totient is φ = 680707486.

The previous prime is 680707483. The next prime is 680707513. The reversal of 680707487 is 784707086.

680707487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 680707487 - 2² = 680707483 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (680707481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340353743 + 340353744.

It is an arithmetic number, because the mean of its divisors is an integer number (340353744).

Almost surely, 2^680707487 is an apocalyptic number.

680707487 is a deficient number, since it is larger than the sum of its proper divisors (1).

680707487 is an equidigital number, since it uses as much as digits as its factorization.

680707487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 526848, while the sum is 47.

The square root of 680707487 is about 26090.3715381748. The cubic root of 680707487 is about 879.6707992987.

It can be divided in two parts, 68070 and 7487, that added together give a palindrome (75557).

The spelling of 680707487 in words is "six hundred eighty million, seven hundred seven thousand, four hundred eighty-seven".