679943312 has 20 divisors (see below), whose sum is σ = 1330436796. Its totient is φ = 336604800.

The previous prime is 679943311. The next prime is 679943321. The reversal of 679943312 is 213349976.

It can be written as a sum of positive squares in 2 ways, for example, as 290907136 + 389036176 = 17056^2 + 19724^2 .

It is not an unprimeable number, because it can be changed into a prime (679943311) by changing a digit.

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, 208763 + ... + 211994.

Almost surely, 2^679943312 is an apocalyptic number.

It is an amenable number.

679943312 is a deficient number, since it is larger than the sum of its proper divisors (650493484).

679943312 is a wasteful number, since it uses less digits than its factorization.

679943312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420866 (or 420860 counting only the distinct ones).

The product of its digits is 244944, while the sum is 44.

The square root of 679943312 is about 26075.7226553743. The cubic root of 679943312 is about 879.3414977251.

The spelling of 679943312 in words is "six hundred seventy-nine million, nine hundred forty-three thousand, three hundred twelve".