680078041 has 2 divisors, whose sum is σ = 680078042. Its totient is φ = 680078040.

The previous prime is 680077987. The next prime is 680078083. The reversal of 680078041 is 140870086.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 656845641 + 23232400 = 25629^2 + 4820^2 .

It is a cyclic number.

It is not a de Polignac number, because 680078041 - 2⁷ = 680077913 is a prime.

It is a super-2 number, since 2×680078041² = 925012283700795362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 680077988 and 680078006.

It is not a weakly prime, because it can be changed into another prime (680078741) 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, 340039020 + 340039021.

It is an arithmetic number, because the mean of its divisors is an integer number (340039021).

Almost surely, 2^680078041 is an apocalyptic number.

It is an amenable number.

680078041 is a deficient number, since it is larger than the sum of its proper divisors (1).

680078041 is an equidigital number, since it uses as much as digits as its factorization.

680078041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 680078041 is about 26078.3059457473. The cubic root of 680078041 is about 879.3995736335.

The spelling of 680078041 in words is "six hundred eighty million, seventy-eight thousand, forty-one".