683985920 has 88 divisors (see below), whose sum is σ = 1657971744. Its totient is φ = 270729216.

The previous prime is 683985899. The next prime is 683985923. The reversal of 683985920 is 29589386.

It is not an unprimeable number, because it can be changed into a prime (683985923) 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, 526712 + ... + 528008.

It is an arithmetic number, because the mean of its divisors is an integer number (18840588).

Almost surely, 2^683985920 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 683985920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (828985872).

683985920 is an abundant number, since it is smaller than the sum of its proper divisors (973985824).

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

683985920 is a wasteful number, since it uses less digits than its factorization.

683985920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425 (or 1407 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 683985920 is about 26153.1244787310. The cubic root of 683985920 is about 881.0807657857.

The spelling of 683985920 in words is "six hundred eighty-three million, nine hundred eighty-five thousand, nine hundred twenty".