680447107 has 2 divisors, whose sum is σ = 680447108. Its totient is φ = 680447106.

The previous prime is 680447087. The next prime is 680447113. The reversal of 680447107 is 701744086.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-680447107 is a prime.

It is a super-4 number, since 4×680447107⁴ (a number of 36 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (680447137) 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, 340223553 + 340223554.

It is an arithmetic number, because the mean of its divisors is an integer number (340223554).

Almost surely, 2^680447107 is an apocalyptic number.

680447107 is a deficient number, since it is larger than the sum of its proper divisors (1).

680447107 is an equidigital number, since it uses as much as digits as its factorization.

680447107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 680447107 is about 26085.3810974653. The cubic root of 680447107 is about 879.5586229243.

The spelling of 680447107 in words is "six hundred eighty million, four hundred forty-seven thousand, one hundred seven".