685116613 has 8 divisors (see below), whose sum is σ = 696978432. Its totient is φ = 673356096.

The previous prime is 685116589. The next prime is 685116629. The reversal of 685116613 is 316611586.

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 685116613 - 2⁹ = 685116101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685117613) 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 in 7 ways as a sum of consecutive naturals, for example, 11620 + ... + 38797.

It is an arithmetic number, because the mean of its divisors is an integer number (87122304).

Almost surely, 2^685116613 is an apocalyptic number.

It is an amenable number.

685116613 is a deficient number, since it is larger than the sum of its proper divisors (11861819).

685116613 is a wasteful number, since it uses less digits than its factorization.

685116613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50651.

The product of its digits is 25920, while the sum is 37.

The square root of 685116613 is about 26174.7323386506. The cubic root of 685116613 is about 881.5660016040.

The spelling of 685116613 in words is "six hundred eighty-five million, one hundred sixteen thousand, six hundred thirteen".