687552 has 28 divisors (see below), whose sum is σ = 1819656. Its totient is φ = 229120.

The previous prime is 687551. The next prime is 687559. The reversal of 687552 is 255786.

It is a happy number.

687552 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 (687551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1599 + ... + 1982.

2⁶⁸⁷⁵⁵² is an apocalyptic number.

It is an amenable number.

687552 is an abundant number, since it is smaller than the sum of its proper divisors (1132104).

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

687552 is a wasteful number, since it uses less digits than its factorization.

687552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3596 (or 3586 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 687552 is about 829.1875541758. The cubic root of 687552 is about 88.2609335163.

The spelling of 687552 in words is "six hundred eighty-seven thousand, five hundred fifty-two".