676559687 has 2 divisors, whose sum is σ = 676559688. Its totient is φ = 676559686.

The previous prime is 676559671. The next prime is 676559753. The reversal of 676559687 is 786955676.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 676559687 - 2⁴ = 676559671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (676559887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338279843 + 338279844.

It is an arithmetic number, because the mean of its divisors is an integer number (338279844).

Almost surely, 2^676559687 is an apocalyptic number.

676559687 is a deficient number, since it is larger than the sum of its proper divisors (1).

676559687 is an equidigital number, since it uses as much as digits as its factorization.

676559687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19051200, while the sum is 59.

The square root of 676559687 is about 26010.7609846386. The cubic root of 676559687 is about 877.8804391448.

The spelling of 676559687 in words is "six hundred seventy-six million, five hundred fifty-nine thousand, six hundred eighty-seven".