685342595 has 16 divisors (see below), whose sum is σ = 940352448. Its totient is φ = 469722240.

The previous prime is 685342591. The next prime is 685342633. The reversal of 685342595 is 595243586.

It is not a de Polignac number, because 685342595 - 2² = 685342591 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (685342591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103937 + ... + 110333.

It is an arithmetic number, because the mean of its divisors is an integer number (58772028).

Almost surely, 2^685342595 is an apocalyptic number.

685342595 is a deficient number, since it is larger than the sum of its proper divisors (255009853).

685342595 is a wasteful number, since it uses less digits than its factorization.

685342595 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9470.

The product of its digits is 1296000, while the sum is 47.

The square root of 685342595 is about 26179.0487795107. The cubic root of 685342595 is about 881.6629175376.

Subtracting from 685342595 its reverse (595243586), we obtain a palindrome (90099009).

The spelling of 685342595 in words is "six hundred eighty-five million, three hundred forty-two thousand, five hundred ninety-five".