680946746 has 8 divisors (see below), whose sum is σ = 1021680000. Its totient is φ = 340386748.

The previous prime is 680946727. The next prime is 680946769. The reversal of 680946746 is 647649086.

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

It is a junction number, because it is equal to n+sod(n) for n = 680946694 and 680946703.

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, 32996 + ... + 49503.

It is an arithmetic number, because the mean of its divisors is an integer number (127710000).

Almost surely, 2^680946746 is an apocalyptic number.

680946746 is a deficient number, since it is larger than the sum of its proper divisors (340733254).

680946746 is a wasteful number, since it uses less digits than its factorization.

680946746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86628.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The square root of 680946746 is about 26094.9563325942. The cubic root of 680946746 is about 879.7738511507.

The spelling of 680946746 in words is "six hundred eighty million, nine hundred forty-six thousand, seven hundred forty-six".