687520132 has 48 divisors (see below), whose sum is σ = 1323925120. Its totient is φ = 310480128.

The previous prime is 687520109. The next prime is 687520133. The reversal of 687520132 is 231025786.

It is a happy number.

687520132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (687520133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526993 + ... + 528295.

Almost surely, 2^687520132 is an apocalyptic number.

It is an amenable number.

687520132 is a deficient number, since it is larger than the sum of its proper divisors (636404988).

687520132 is a wasteful number, since it uses less digits than its factorization.

687520132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532 (or 1530 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 687520132 is about 26220.6051036203. The cubic root of 687520132 is about 882.5956986532.

The spelling of 687520132 in words is "six hundred eighty-seven million, five hundred twenty thousand, one hundred thirty-two".