680633306 has 8 divisors (see below), whose sum is σ = 1056155220. Its totient is φ = 328581568.

The previous prime is 680633299. The next prime is 680633339. The reversal of 680633306 is 603336086.

It can be written as a sum of positive squares in 2 ways, for example, as 616777225 + 63856081 = 24835^2 + 7991^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 5867471 + ... + 5867586.

Almost surely, 2^680633306 is an apocalyptic number.

680633306 is a deficient number, since it is larger than the sum of its proper divisors (375521914).

680633306 is a wasteful number, since it uses less digits than its factorization.

680633306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11735088.

The product of its (nonzero) digits is 46656, while the sum is 35.

The square root of 680633306 is about 26088.9498830444. The cubic root of 680633306 is about 879.6388437077.

The spelling of 680633306 in words is "six hundred eighty million, six hundred thirty-three thousand, three hundred six".