685830200 has 96 divisors (see below), whose sum is σ = 1747722960. Its totient is φ = 248217600.

The previous prime is 685830199. The next prime is 685830203. The reversal of 685830200 is 2038586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685830203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 564794 + ... + 566006.

Almost surely, 2^685830200 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 685830200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (873861480).

685830200 is an abundant number, since it is smaller than the sum of its proper divisors (1061892760).

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

685830200 is a wasteful number, since it uses less digits than its factorization.

685830200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497 (or 1488 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 685830200 is about 26188.3600097448. The cubic root of 685830200 is about 881.8719620530.

Adding to 685830200 its reverse (2038586), we get a palindrome (687868786).

The spelling of 685830200 in words is "six hundred eighty-five million, eight hundred thirty thousand, two hundred".