685363168 has 48 divisors (see below), whose sum is σ = 1545645024. Its totient is φ = 293045760.

The previous prime is 685363163. The next prime is 685363169. The reversal of 685363168 is 861363586.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685363163) 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, 99946 + ... + 106582.

It is an arithmetic number, because the mean of its divisors is an integer number (32200938).

Almost surely, 2^685363168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 685363168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (772822512).

685363168 is an abundant number, since it is smaller than the sum of its proper divisors (860281856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

685363168 is a wasteful number, since it uses less digits than its factorization.

685363168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7115 (or 7107 counting only the distinct ones).

The product of its digits is 622080, while the sum is 46.

The square root of 685363168 is about 26179.4417052771. The cubic root of 685363168 is about 881.6717395340.

The spelling of 685363168 in words is "six hundred eighty-five million, three hundred sixty-three thousand, one hundred sixty-eight".