680328397 has 12 divisors (see below), whose sum is σ = 793230240. Its totient is φ = 581791896.

The previous prime is 680328379. The next prime is 680328403. The reversal of 680328397 is 793823086.

It is not a de Polignac number, because 680328397 - 2²³ = 671939789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680328317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5698 + ... + 37324.

It is an arithmetic number, because the mean of its divisors is an integer number (66102520).

Almost surely, 2^680328397 is an apocalyptic number.

It is an amenable number.

680328397 is a deficient number, since it is larger than the sum of its proper divisors (112901843).

680328397 is a wasteful number, since it uses less digits than its factorization.

680328397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32080 (or 32073 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 680328397 is about 26083.1055858002. The cubic root of 680328397 is about 879.5074710295.

The spelling of 680328397 in words is "six hundred eighty million, three hundred twenty-eight thousand, three hundred ninety-seven".