680108705 has 8 divisors (see below), whose sum is σ = 859084800. Its totient is φ = 515450736.

The previous prime is 680108701. The next prime is 680108731. The reversal of 680108705 is 507801086.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 680108705 - 2² = 680108701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (680108701) 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, 3579425 + ... + 3579614.

It is an arithmetic number, because the mean of its divisors is an integer number (107385600).

Almost surely, 2^680108705 is an apocalyptic number.

It is an amenable number.

680108705 is a deficient number, since it is larger than the sum of its proper divisors (178976095).

680108705 is a wasteful number, since it uses less digits than its factorization.

680108705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7159063.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 680108705 is about 26078.8938607449. The cubic root of 680108705 is about 879.4127905006.

The spelling of 680108705 in words is "six hundred eighty million, one hundred eight thousand, seven hundred five".