687513168 has 60 divisors (see below), whose sum is σ = 1925927328. Its totient is φ = 228951360.

The previous prime is 687513139. The next prime is 687513209. The reversal of 687513168 is 861315786.

687513168 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 an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229923 + ... + 232893.

Almost surely, 2^687513168 is an apocalyptic number.

It is an amenable number.

687513168 is an abundant number, since it is smaller than the sum of its proper divisors (1238414160).

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

687513168 is a wasteful number, since it uses less digits than its factorization.

687513168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4592 (or 4583 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 687513168 is about 26220.4723069589. The cubic root of 687513168 is about 882.5927186594.

The spelling of 687513168 in words is "six hundred eighty-seven million, five hundred thirteen thousand, one hundred sixty-eight".