680814673 has 12 divisors (see below), whose sum is σ = 863965872. Its totient is φ = 530504520.

The previous prime is 680814647. The next prime is 680814679. The reversal of 680814673 is 376418086.

It is not a de Polignac number, because 680814673 - 2²¹ = 678717521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (680814679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 631015 + ... + 632092.

It is an arithmetic number, because the mean of its divisors is an integer number (71997156).

Almost surely, 2^680814673 is an apocalyptic number.

It is an amenable number.

680814673 is a deficient number, since it is larger than the sum of its proper divisors (183151199).

680814673 is a wasteful number, since it uses less digits than its factorization.

680814673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263132 (or 1263125 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 680814673 is about 26092.4255867484. The cubic root of 680814673 is about 879.7169686385.

The spelling of 680814673 in words is "six hundred eighty million, eight hundred fourteen thousand, six hundred seventy-three".