671144 has 16 divisors (see below), whose sum is σ = 1288320. Its totient is φ = 327600.

The previous prime is 671141. The next prime is 671159. The reversal of 671144 is 441176.

671144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 671144.

It is not an unprimeable number, because it can be changed into a prime (671141) 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, 632 + ... + 1319.

It is an arithmetic number, because the mean of its divisors is an integer number (80520).

2⁶⁷¹¹⁴⁴ is an apocalyptic number.

It is an amenable number.

671144 is a deficient number, since it is larger than the sum of its proper divisors (617176).

671144 is a wasteful number, since it uses less digits than its factorization.

671144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000 (or 1996 counting only the distinct ones).

The product of its digits is 672, while the sum is 23.

The square root of 671144 is about 819.2337883657. The cubic root of 671144 is about 87.5531758405.

The spelling of 671144 in words is "six hundred seventy-one thousand, one hundred forty-four".