687112227 has 40 divisors (see below), whose sum is σ = 1048889952. Its totient is φ = 448156800.

The previous prime is 687112213. The next prime is 687112243. The reversal of 687112227 is 722211786.

It is not a de Polignac number, because 687112227 - 2⁴ = 687112211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 687112191 and 687112200.

It is not an unprimeable number, because it can be changed into a prime (687112267) 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 39 ways as a sum of consecutive naturals, for example, 902527 + ... + 903287.

Almost surely, 2^687112227 is an apocalyptic number.

687112227 is a deficient number, since it is larger than the sum of its proper divisors (361777725).

687112227 is a wasteful number, since it uses less digits than its factorization.

687112227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001 (or 992 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 687112227 is about 26212.8256202951. The cubic root of 687112227 is about 882.4211164099.

The spelling of 687112227 in words is "six hundred eighty-seven million, one hundred twelve thousand, two hundred twenty-seven".