680683746 has 32 divisors (see below), whose sum is σ = 1401674688. Its totient is φ = 220207680.

The previous prime is 680683741. The next prime is 680683793. The reversal of 680683746 is 647386086.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 680683695 and 680683704.

It is not an unprimeable number, because it can be changed into a prime (680683741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89821 + ... + 97103.

It is an arithmetic number, because the mean of its divisors is an integer number (43802334).

Almost surely, 2^680683746 is an apocalyptic number.

680683746 is an abundant number, since it is smaller than the sum of its proper divisors (720990942).

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

680683746 is a wasteful number, since it uses less digits than its factorization.

680683746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7746.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The square root of 680683746 is about 26089.9165579348. The cubic root of 680683746 is about 879.6605724354.

The spelling of 680683746 in words is "six hundred eighty million, six hundred eighty-three thousand, seven hundred forty-six".