680570928 has 120 divisors (see below), whose sum is σ = 2029611168. Its totient is φ = 212146176.

The previous prime is 680570921. The next prime is 680570963. The reversal of 680570928 is 829075086.

It is not an unprimeable number, because it can be changed into a prime (680570921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 422701 + ... + 424307.

Almost surely, 2^680570928 is an apocalyptic number.

680570928 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 680570928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1014805584).

680570928 is an abundant number, since it is smaller than the sum of its proper divisors (1349040240).

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

680570928 is a wasteful number, since it uses less digits than its factorization.

680570928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811 (or 1802 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 680570928 is about 26087.7543686688. The cubic root of 680570928 is about 879.6119707999.

The spelling of 680570928 in words is "six hundred eighty million, five hundred seventy thousand, nine hundred twenty-eight".