679699712 has 72 divisors (see below), whose sum is σ = 1467559296. Its totient is φ = 312958976.

The previous prime is 679699639. The next prime is 679699723. The reversal of 679699712 is 217996976.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202883 + ... + 206205.

It is an arithmetic number, because the mean of its divisors is an integer number (20382768).

Almost surely, 2^679699712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679699712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (733779648).

679699712 is an abundant number, since it is smaller than the sum of its proper divisors (787859584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

679699712 is a wasteful number, since it uses less digits than its factorization.

679699712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403 (or 3389 counting only the distinct ones).

The product of its digits is 2571912, while the sum is 56.

The square root of 679699712 is about 26071.0512254493. The cubic root of 679699712 is about 879.2364727075.

The spelling of 679699712 in words is "six hundred seventy-nine million, six hundred ninety-nine thousand, seven hundred twelve".