687532 has 12 divisors (see below), whose sum is σ = 1244880. Its totient is φ = 331856.

The previous prime is 687523. The next prime is 687541. The reversal of 687532 is 235786.

It is an interprime number because it is at equal distance from previous prime (687523) and next prime (687541).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 687494 and 687503.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2848 + ... + 3079.

It is an arithmetic number, because the mean of its divisors is an integer number (103740).

2⁶⁸⁷⁵³² is an apocalyptic number.

It is an amenable number.

687532 is a deficient number, since it is larger than the sum of its proper divisors (557348).

687532 is a wasteful number, since it uses less digits than its factorization.

687532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5960 (or 5958 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 687532 is about 829.1754940904. The cubic root of 687532 is about 88.2600777091.

The spelling of 687532 in words is "six hundred eighty-seven thousand, five hundred thirty-two".