680446043 has 2 divisors, whose sum is σ = 680446044. Its totient is φ = 680446042.

The previous prime is 680446003. The next prime is 680446051. The reversal of 680446043 is 340644086.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 680446043 - 2¹⁰ = 680445019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 680445994 and 680446012.

It is not a weakly prime, because it can be changed into another prime (680446003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340223021 + 340223022.

It is an arithmetic number, because the mean of its divisors is an integer number (340223022).

Almost surely, 2^680446043 is an apocalyptic number.

680446043 is a deficient number, since it is larger than the sum of its proper divisors (1).

680446043 is an equidigital number, since it uses as much as digits as its factorization.

680446043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 680446043 is about 26085.3607028923. The cubic root of 680446043 is about 879.5581644753.

The spelling of 680446043 in words is "six hundred eighty million, four hundred forty-six thousand, forty-three".