687837112 has 16 divisors (see below), whose sum is σ = 1289985840. Its totient is φ = 343840896.

The previous prime is 687837097. The next prime is 687837211. The reversal of 687837112 is 211738786.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48373 + ... + 60955.

It is an arithmetic number, because the mean of its divisors is an integer number (80624115).

Almost surely, 2^687837112 is an apocalyptic number.

It is an amenable number.

687837112 is a deficient number, since it is larger than the sum of its proper divisors (602148728).

687837112 is a wasteful number, since it uses less digits than its factorization.

687837112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19422 (or 19418 counting only the distinct ones).

The product of its digits is 112896, while the sum is 43.

The square root of 687837112 is about 26226.6488900126. The cubic root of 687837112 is about 882.7313175670.

The spelling of 687837112 in words is "six hundred eighty-seven million, eight hundred thirty-seven thousand, one hundred twelve".