680263028 has 12 divisors (see below), whose sum is σ = 1192908192. Its totient is φ = 339432120.

The previous prime is 680263027. The next prime is 680263043. The reversal of 680263028 is 820362086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680263027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172658 + ... + 176553.

It is an arithmetic number, because the mean of its divisors is an integer number (99409016).

Almost surely, 2^680263028 is an apocalyptic number.

It is an amenable number.

680263028 is a deficient number, since it is larger than the sum of its proper divisors (512645164).

680263028 is a wasteful number, since it uses less digits than its factorization.

680263028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349702 (or 349700 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 680263028 is about 26081.8524648845. The cubic root of 680263028 is about 879.4793011213.

The spelling of 680263028 in words is "six hundred eighty million, two hundred sixty-three thousand, twenty-eight".