687501368 has 16 divisors (see below), whose sum is σ = 1300893000. Its totient is φ = 340596576.

The previous prime is 687501361. The next prime is 687501389. The reversal of 687501368 is 863105786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687501361) 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, 393338 + ... + 395081.

Almost surely, 2^687501368 is an apocalyptic number.

It is an amenable number.

687501368 is a deficient number, since it is larger than the sum of its proper divisors (613391632).

687501368 is a wasteful number, since it uses less digits than its factorization.

687501368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788534 (or 788530 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 687501368 is about 26220.2472909773. The cubic root of 687501368 is about 882.5876692271.

The spelling of 687501368 in words is "six hundred eighty-seven million, five hundred one thousand, three hundred sixty-eight".