680564017 has 8 divisors (see below), whose sum is σ = 777951296. Its totient is φ = 583217712.

The previous prime is 680564011. The next prime is 680564023. The reversal of 680564017 is 710465086.

It is an interprime number because it is at equal distance from previous prime (680564011) and next prime (680564023).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-680564017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680564011) 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 7 ways as a sum of consecutive naturals, for example, 45838 + ... + 58840.

It is an arithmetic number, because the mean of its divisors is an integer number (97243912).

Almost surely, 2^680564017 is an apocalyptic number.

It is an amenable number.

680564017 is a deficient number, since it is larger than the sum of its proper divisors (97387279).

680564017 is a wasteful number, since it uses less digits than its factorization.

680564017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20487.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 680564017 is about 26087.6219115503. The cubic root of 680564017 is about 879.6089933886.

The spelling of 680564017 in words is "six hundred eighty million, five hundred sixty-four thousand, seventeen".