671671112 has 16 divisors (see below), whose sum is σ = 1439295360. Its totient is φ = 287859024.

The previous prime is 671671111. The next prime is 671671127. The reversal of 671671112 is 211176176.

It is a super-2 number, since 2×671671112² = 902284165390633088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (671671111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5997008 + ... + 5997119.

It is an arithmetic number, because the mean of its divisors is an integer number (89955960).

Almost surely, 2^671671112 is an apocalyptic number.

It is an amenable number.

671671112 is an abundant number, since it is smaller than the sum of its proper divisors (767624248).

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

671671112 is a wasteful number, since it uses less digits than its factorization.

671671112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11994140 (or 11994136 counting only the distinct ones).

The product of its digits is 3528, while the sum is 32.

The square root of 671671112 is about 25916.6184522595. The cubic root of 671671112 is about 875.7609106824.

The spelling of 671671112 in words is "six hundred seventy-one million, six hundred seventy-one thousand, one hundred twelve".