685410113 has 2 divisors, whose sum is σ = 685410114. Its totient is φ = 685410112.

The previous prime is 685410059. The next prime is 685410149. The reversal of 685410113 is 311014586.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 677665024 + 7745089 = 26032^2 + 2783^2 .

It is a cyclic number.

It is not a de Polignac number, because 685410113 - 2²⁴ = 668632897 is a prime.

It is not a weakly prime, because it can be changed into another prime (685410013) by changing a digit.

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 as a sum of consecutive naturals, namely, 342705056 + 342705057.

It is an arithmetic number, because the mean of its divisors is an integer number (342705057).

Almost surely, 2^685410113 is an apocalyptic number.

It is an amenable number.

685410113 is a deficient number, since it is larger than the sum of its proper divisors (1).

685410113 is an equidigital number, since it uses as much as digits as its factorization.

685410113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 685410113 is about 26180.3382904041. The cubic root of 685410113 is about 881.6918695599.

Adding to 685410113 its reverse (311014586), we get a palindrome (996424699).

The spelling of 685410113 in words is "six hundred eighty-five million, four hundred ten thousand, one hundred thirteen".