680260331 has 2 divisors, whose sum is σ = 680260332. Its totient is φ = 680260330.

The previous prime is 680260319. The next prime is 680260367. The reversal of 680260331 is 133062086.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-680260331 is a prime.

It is a super-2 number, since 2×680260331² = 925508235864459122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 680260294 and 680260303.

It is not a weakly prime, because it can be changed into another prime (680260391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340130165 + 340130166.

It is an arithmetic number, because the mean of its divisors is an integer number (340130166).

Almost surely, 2^680260331 is an apocalyptic number.

680260331 is a deficient number, since it is larger than the sum of its proper divisors (1).

680260331 is an equidigital number, since it uses as much as digits as its factorization.

680260331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 680260331 is about 26081.8007622173. The cubic root of 680260331 is about 879.4781388460.

The spelling of 680260331 in words is "six hundred eighty million, two hundred sixty thousand, three hundred thirty-one".