687725088 has 24 divisors (see below), whose sum is σ = 1805278608. Its totient is φ = 229241664.

The previous prime is 687725081. The next prime is 687725107. The reversal of 687725088 is 880527786.

687725088 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 687725088.

It is not an unprimeable number, because it can be changed into a prime (687725081) 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, 3581806 + ... + 3581997.

It is an arithmetic number, because the mean of its divisors is an integer number (75219942).

Almost surely, 2^687725088 is an apocalyptic number.

It is an amenable number.

687725088 is an abundant number, since it is smaller than the sum of its proper divisors (1117553520).

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

687725088 is a wasteful number, since it uses less digits than its factorization.

687725088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7163816 (or 7163808 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 51.

The square root of 687725088 is about 26224.5131127348. The cubic root of 687725088 is about 882.6833932061.

The spelling of 687725088 in words is "six hundred eighty-seven million, seven hundred twenty-five thousand, eighty-eight".