685534112 has 48 divisors (see below), whose sum is σ = 1435698432. Its totient is φ = 321100800.

The previous prime is 685534099. The next prime is 685534121. The reversal of 685534112 is 211435586.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118487 + ... + 124137.

It is an arithmetic number, because the mean of its divisors is an integer number (29910384).

Almost surely, 2^685534112 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 685534112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (717849216).

685534112 is an abundant number, since it is smaller than the sum of its proper divisors (750164320).

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

685534112 is a wasteful number, since it uses less digits than its factorization.

685534112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5901 (or 5893 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The square root of 685534112 is about 26182.7063536220. The cubic root of 685534112 is about 881.7450359371.

Adding to 685534112 its reverse (211435586), we get a palindrome (896969698).

The spelling of 685534112 in words is "six hundred eighty-five million, five hundred thirty-four thousand, one hundred twelve".