685808032 has 96 divisors (see below), whose sum is σ = 1700721792. Its totient is φ = 264950784.

The previous prime is 685808027. The next prime is 685808041. The reversal of 685808032 is 230808586.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122478 + ... + 127954.

It is an arithmetic number, because the mean of its divisors is an integer number (17715852).

Almost surely, 2^685808032 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 685808032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (850360896).

685808032 is an abundant number, since it is smaller than the sum of its proper divisors (1014913760).

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

685808032 is a wasteful number, since it uses less digits than its factorization.

685808032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5550 (or 5542 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 685808032 is about 26187.9367648542. The cubic root of 685808032 is about 881.8624604065.

It can be divided in two parts, 68 and 5808032, that added together give a square (5808100 = 2410²).

The spelling of 685808032 in words is "six hundred eighty-five million, eight hundred eight thousand, thirty-two".