671172112 has 40 divisors (see below), whose sum is σ = 1474141760. Its totient is φ = 293466240.

The previous prime is 671172109. The next prime is 671172127. The reversal of 671172112 is 211271176.

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 7 ways as a sum of consecutive naturals, for example, 80964 + ... + 88867.

It is an arithmetic number, because the mean of its divisors is an integer number (36853544).

Almost surely, 2^671172112 is an apocalyptic number.

It is an amenable number.

671172112 is an abundant number, since it is smaller than the sum of its proper divisors (802969648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671172112 is a wasteful number, since it uses less digits than its factorization.

671172112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169871 (or 169865 counting only the distinct ones).

The product of its digits is 1176, while the sum is 28.

The square root of 671172112 is about 25906.9896360036. The cubic root of 671172112 is about 875.5439826097.

The spelling of 671172112 in words is "six hundred seventy-one million, one hundred seventy-two thousand, one hundred twelve".