680591896 has 32 divisors (see below), whose sum is σ = 1351491840. Its totient is φ = 320636448.

The previous prime is 680591869. The next prime is 680591897. The reversal of 680591896 is 698195086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680591897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15276 + ... + 39931.

It is an arithmetic number, because the mean of its divisors is an integer number (42234120).

Almost surely, 2^680591896 is an apocalyptic number.

It is an amenable number.

680591896 is a deficient number, since it is larger than the sum of its proper divisors (670899944).

680591896 is a wasteful number, since it uses less digits than its factorization.

680591896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55303 (or 55299 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 52.

The square root of 680591896 is about 26088.1562399492. The cubic root of 680591896 is about 879.6210041540.

The spelling of 680591896 in words is "six hundred eighty million, five hundred ninety-one thousand, eight hundred ninety-six".