6580681 has 2 divisors, whose sum is σ = 6580682. Its totient is φ = 6580680.

The previous prime is 6580667. The next prime is 6580687. The reversal of 6580681 is 1860856.

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., 5405625 + 1175056 = 2325^2 + 1084^2 .

It is a cyclic number.

It is not a de Polignac number, because 6580681 - 2⁹ = 6580169 is a prime.

It is a super-2 number, since 2×6580681² = 86610724847522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6580687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3290340 + 3290341.

It is an arithmetic number, because the mean of its divisors is an integer number (3290341).

Almost surely, 2^6580681 is an apocalyptic number.

It is an amenable number.

6580681 is a deficient number, since it is larger than the sum of its proper divisors (1).

6580681 is an equidigital number, since it uses as much as digits as its factorization.

6580681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 6580681 is about 2565.2838049619. The cubic root of 6580681 is about 187.3945457383.

The spelling of 6580681 in words is "six million, five hundred eighty thousand, six hundred eighty-one".