685932163 has 8 divisors (see below), whose sum is σ = 794661728. Its totient is φ = 579887424.

The previous prime is 685932139. The next prime is 685932193. The reversal of 685932163 is 361239586.

685932163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 685932163 - 2⁹ = 685931651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (685932193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670656 + ... + 671677.

It is an arithmetic number, because the mean of its divisors is an integer number (99332716).

Almost surely, 2^685932163 is an apocalyptic number.

685932163 is a deficient number, since it is larger than the sum of its proper divisors (108729565).

685932163 is a wasteful number, since it uses less digits than its factorization.

685932163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342413.

The product of its digits is 233280, while the sum is 43.

The square root of 685932163 is about 26190.3066610531. The cubic root of 685932163 is about 881.9156627898.

It can be divided in two parts, 68593 and 2163, that added together give a square (70756 = 266²).

The spelling of 685932163 in words is "six hundred eighty-five million, nine hundred thirty-two thousand, one hundred sixty-three".