685983232 has 60 divisors (see below), whose sum is σ = 1499525676. Its totient is φ = 310917120.

The previous prime is 685983229. The next prime is 685983241. The reversal of 685983232 is 232389586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1965394 + ... + 1965742.

Almost surely, 2^685983232 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 685983232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (749762838).

685983232 is an abundant number, since it is smaller than the sum of its proper divisors (813542444).

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

685983232 is an frugal number, since it uses more digits than its factorization.

685983232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727 (or 362 counting only the distinct ones).

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

The square root of 685983232 is about 26191.2816028540. The cubic root of 685983232 is about 881.9375490324.

The spelling of 685983232 in words is "six hundred eighty-five million, nine hundred eighty-three thousand, two hundred thirty-two".