680430646 has 8 divisors (see below), whose sum is σ = 1166452560. Its totient is φ = 291613128.

The previous prime is 680430533. The next prime is 680430719. The reversal of 680430646 is 646034086.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24301081 + ... + 24301108.

It is an arithmetic number, because the mean of its divisors is an integer number (145806570).

Almost surely, 2^680430646 is an apocalyptic number.

680430646 is a deficient number, since it is larger than the sum of its proper divisors (486021914).

680430646 is a wasteful number, since it uses less digits than its factorization.

680430646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48602198.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 680430646 is about 26085.0655740023. The cubic root of 680430646 is about 879.5515302686.

The spelling of 680430646 in words is "six hundred eighty million, four hundred thirty thousand, six hundred forty-six".