687880196 has 12 divisors (see below), whose sum is σ = 1204020048. Its totient is φ = 343874472.

The previous prime is 687880189. The next prime is 687880267. The reversal of 687880196 is 691088786.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13055 + ... + 39321.

It is an arithmetic number, because the mean of its divisors is an integer number (100335004).

Almost surely, 2^687880196 is an apocalyptic number.

It is an amenable number.

687880196 is a deficient number, since it is larger than the sum of its proper divisors (516139852).

687880196 is a wasteful number, since it uses less digits than its factorization.

687880196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32818 (or 32816 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 53.

The square root of 687880196 is about 26227.4702554402. The cubic root of 687880196 is about 882.7497477066.

The spelling of 687880196 in words is "six hundred eighty-seven million, eight hundred eighty thousand, one hundred ninety-six".