676863856 has 10 divisors (see below), whose sum is σ = 1311423752. Its totient is φ = 338431920.

The previous prime is 676863853. The next prime is 676863877. The reversal of 676863856 is 658368676.

It is a junction number, because it is equal to n+sod(n) for n = 676863797 and 676863806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676863853) 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, 21151980 + ... + 21152011.

Almost surely, 2^676863856 is an apocalyptic number.

It is an amenable number.

676863856 is a deficient number, since it is larger than the sum of its proper divisors (634559896).

676863856 is a wasteful number, since it uses less digits than its factorization.

676863856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42303999 (or 42303993 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 55.

The square root of 676863856 is about 26016.6073114847. The cubic root of 676863856 is about 878.0119791573.

The spelling of 676863856 in words is "six hundred seventy-six million, eight hundred sixty-three thousand, eight hundred fifty-six".