687175340 has 24 divisors (see below), whose sum is σ = 1446204480. Its totient is φ = 274272768.

The previous prime is 687175339. The next prime is 687175361. The reversal of 687175340 is 43571786.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27845 + ... + 46364.

It is an arithmetic number, because the mean of its divisors is an integer number (60258520).

Almost surely, 2^687175340 is an apocalyptic number.

It is an amenable number.

687175340 is an abundant number, since it is smaller than the sum of its proper divisors (759029140).

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

687175340 is a wasteful number, since it uses less digits than its factorization.

687175340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74681 (or 74679 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 687175340 is about 26214.0294498957. The cubic root of 687175340 is about 882.4481331216.

The spelling of 687175340 in words is "six hundred eighty-seven million, one hundred seventy-five thousand, three hundred forty".