687675232 has 48 divisors (see below), whose sum is σ = 1413417600. Its totient is φ = 328965120.

The previous prime is 687675217. The next prime is 687675239. The reversal of 687675232 is 232576786.

687675232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687675239) 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, 84394 + ... + 92182.

It is an arithmetic number, because the mean of its divisors is an integer number (29446200).

Almost surely, 2^687675232 is an apocalyptic number.

687675232 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 687675232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (706708800).

687675232 is an abundant number, since it is smaller than the sum of its proper divisors (725742368).

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

687675232 is a wasteful number, since it uses less digits than its factorization.

687675232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7919 (or 7911 counting only the distinct ones).

The product of its digits is 846720, while the sum is 46.

The square root of 687675232 is about 26223.5625344841. The cubic root of 687675232 is about 882.6620629161.

The spelling of 687675232 in words is "six hundred eighty-seven million, six hundred seventy-five thousand, two hundred thirty-two".