680086676 has 12 divisors (see below), whose sum is σ = 1190375508. Its totient is φ = 339979392.

The previous prime is 680086669. The next prime is 680086681. The reversal of 680086676 is 676680086.

It can be written as a sum of positive squares in 2 ways, for example, as 440580100 + 239506576 = 20990^2 + 15476^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 680086676.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 14330 + ... + 39566.

It is an arithmetic number, because the mean of its divisors is an integer number (99197959).

Almost surely, 2^680086676 is an apocalyptic number.

It is an amenable number.

680086676 is a deficient number, since it is larger than the sum of its proper divisors (510288832).

680086676 is a wasteful number, since it uses less digits than its factorization.

680086676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31978 (or 31976 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 680086676 is about 26078.4715042887. The cubic root of 680086676 is about 879.4032955510.

The spelling of 680086676 in words is "six hundred eighty million, eighty-six thousand, six hundred seventy-six".