687374888 has 16 divisors (see below), whose sum is σ = 1297039380. Its totient is φ = 341497728.

The previous prime is 687374887. The next prime is 687374899. The reversal of 687374888 is 888473786.

It can be written as a sum of positive squares in 2 ways, for example, as 673817764 + 13557124 = 25958^2 + 3682^2 .

It is not an unprimeable number, because it can be changed into a prime (687374887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272381 + ... + 274892.

Almost surely, 2^687374888 is an apocalyptic number.

It is an amenable number.

687374888 is a deficient number, since it is larger than the sum of its proper divisors (609664492).

687374888 is a wasteful number, since it uses less digits than its factorization.

687374888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547436 (or 547432 counting only the distinct ones).

The product of its digits is 14450688, while the sum is 59.

The square root of 687374888 is about 26217.8353034723. The cubic root of 687374888 is about 882.5335425301.

The spelling of 687374888 in words is "six hundred eighty-seven million, three hundred seventy-four thousand, eight hundred eighty-eight".