681848107 has 2 divisors, whose sum is σ = 681848108. Its totient is φ = 681848106.

The previous prime is 681848077. The next prime is 681848221. The reversal of 681848107 is 701848186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 681848107 - 2¹¹ = 681846059 is a prime.

It is not a weakly prime, because it can be changed into another prime (681848507) 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, 340924053 + 340924054.

It is an arithmetic number, because the mean of its divisors is an integer number (340924054).

Almost surely, 2^681848107 is an apocalyptic number.

681848107 is a deficient number, since it is larger than the sum of its proper divisors (1).

681848107 is an equidigital number, since it uses as much as digits as its factorization.

681848107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86016, while the sum is 43.

The square root of 681848107 is about 26112.2214106728. The cubic root of 681848107 is about 880.1618620134.

The spelling of 681848107 in words is "six hundred eighty-one million, eight hundred forty-eight thousand, one hundred seven".