679957756 has 12 divisors (see below), whose sum is σ = 1194351480. Its totient is φ = 338714480.

The previous prime is 679957703. The next prime is 679957781. The reversal of 679957756 is 657759976.

679957756 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 679957694 and 679957703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314890 + ... + 317041.

It is an arithmetic number, because the mean of its divisors is an integer number (99529290).

Almost surely, 2^679957756 is an apocalyptic number.

It is an amenable number.

679957756 is a deficient number, since it is larger than the sum of its proper divisors (514393724).

679957756 is a wasteful number, since it uses less digits than its factorization.

679957756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632204 (or 632202 counting only the distinct ones).

The product of its digits is 25004700, while the sum is 61.

The square root of 679957756 is about 26075.9996165056. Note that the first 3 decimals coincide. The cubic root of 679957756 is about 879.3477242827.

The spelling of 679957756 in words is "six hundred seventy-nine million, nine hundred fifty-seven thousand, seven hundred fifty-six".