680396595 has 8 divisors (see below), whose sum is σ = 1088634576. Its totient is φ = 362878176.

The previous prime is 680396551. The next prime is 680396609. The reversal of 680396595 is 595693086.

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-680396595 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22679872 + ... + 22679901.

It is an arithmetic number, because the mean of its divisors is an integer number (136079322).

Almost surely, 2^680396595 is an apocalyptic number.

680396595 is a deficient number, since it is larger than the sum of its proper divisors (408237981).

680396595 is a wasteful number, since it uses less digits than its factorization.

680396595 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45359781.

The product of its (nonzero) digits is 1749600, while the sum is 51.

The square root of 680396595 is about 26084.4128743585. The cubic root of 680396595 is about 879.5368581346.

The spelling of 680396595 in words is "six hundred eighty million, three hundred ninety-six thousand, five hundred ninety-five".