679807612 has 24 divisors (see below), whose sum is σ = 1366122240. Its totient is φ = 292739760.

The previous prime is 679807591. The next prime is 679807613. The reversal of 679807612 is 216708976.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679807613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405748 + ... + 407419.

It is an arithmetic number, because the mean of its divisors is an integer number (56921760).

Almost surely, 2^679807612 is an apocalyptic number.

It is an amenable number.

679807612 is an abundant number, since it is smaller than the sum of its proper divisors (686314628).

679807612 is a wasteful number, since it uses less digits than its factorization.

679807612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813201 (or 813199 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 679807612 is about 26073.1204883497. The cubic root of 679807612 is about 879.2829955047.

The spelling of 679807612 in words is "six hundred seventy-nine million, eight hundred seven thousand, six hundred twelve".