680259797 has 6 divisors (see below), whose sum is σ = 791322678. Its totient is φ = 583079784.

The previous prime is 680259791. The next prime is 680259803. The reversal of 680259797 is 797952086.

680259797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (680259791) and next prime (680259803).

It can be written as a sum of positive squares in only one way, i.e., 441588196 + 238671601 = 21014^2 + 15449^2 .

It is not a de Polignac number, because 680259797 - 2⁴ = 680259781 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 (680259791) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6941378 + ... + 6941475.

It is an arithmetic number, because the mean of its divisors is an integer number (131887113).

Almost surely, 2^680259797 is an apocalyptic number.

It is an amenable number.

680259797 is a deficient number, since it is larger than the sum of its proper divisors (111062881).

680259797 is a wasteful number, since it uses less digits than its factorization.

680259797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13882867 (or 13882860 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 53.

The square root of 680259797 is about 26081.7905251921. The cubic root of 680259797 is about 879.4779087177.

The spelling of 680259797 in words is "six hundred eighty million, two hundred fifty-nine thousand, seven hundred ninety-seven".