676559671 has 2 divisors, whose sum is σ = 676559672. Its totient is φ = 676559670.

The previous prime is 676559633. The next prime is 676559687. The reversal of 676559671 is 176955676.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-676559671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (676559371) 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, 338279835 + 338279836.

It is an arithmetic number, because the mean of its divisors is an integer number (338279836).

Almost surely, 2^676559671 is an apocalyptic number.

676559671 is a deficient number, since it is larger than the sum of its proper divisors (1).

676559671 is an equidigital number, since it uses as much as digits as its factorization.

676559671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2381400, while the sum is 52.

The square root of 676559671 is about 26010.7606770736. The cubic root of 676559671 is about 877.8804322245.

The spelling of 676559671 in words is "six hundred seventy-six million, five hundred fifty-nine thousand, six hundred seventy-one".