687332 has 24 divisors (see below), whose sum is σ = 1300992. Its totient is φ = 316800.

The previous prime is 687331. The next prime is 687341. The reversal of 687332 is 233786.

It is a junction number, because it is equal to n+sod(n) for n = 687295 and 687304.

It is not an unprimeable number, because it can be changed into a prime (687331) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2732 + ... + 2972.

It is an arithmetic number, because the mean of its divisors is an integer number (54208).

2⁶⁸⁷³³² is an apocalyptic number.

687332 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

687332 is a deficient number, since it is larger than the sum of its proper divisors (613660).

687332 is a wasteful number, since it uses less digits than its factorization.

687332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 297 counting only the distinct ones).

The product of its digits is 6048, while the sum is 29.

The square root of 687332 is about 829.0548835873. The cubic root of 687332 is about 88.2515187245.

The spelling of 687332 in words is "six hundred eighty-seven thousand, three hundred thirty-two".