685760000 has 100 divisors (see below), whose sum is σ = 1712976672. Its totient is φ = 274176000.

The previous prime is 685759999. The next prime is 685760081. The reversal of 685760000 is 67586.

685760000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 318929 + ... + 321071.

Almost surely, 2^685760000 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 685760000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (856488336).

685760000 is an abundant number, since it is smaller than the sum of its proper divisors (1027216672).

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

685760000 is an frugal number, since it uses more digits than its factorization.

685760000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181 (or 2150 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 685760000 is about 26187.0196853327. The cubic root of 685760000 is about 881.8418722319.

The spelling of 685760000 in words is "six hundred eighty-five million, seven hundred sixty thousand".