671741 has 6 divisors (see below), whose sum is σ = 781470. Its totient is φ = 575736.

The previous prime is 671729. The next prime is 671743. The reversal of 671741 is 147176.

It can be written as a sum of positive squares in only one way, i.e., 648025 + 23716 = 805^2 + 154^2 .

It is not a de Polignac number, because 671741 - 2¹⁴ = 655357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 671741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6806 + ... + 6903.

It is an arithmetic number, because the mean of its divisors is an integer number (130245).

2⁶⁷¹⁷⁴¹ is an apocalyptic number.

It is an amenable number.

671741 is a deficient number, since it is larger than the sum of its proper divisors (109729).

671741 is a wasteful number, since it uses less digits than its factorization.

671741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13723 (or 13716 counting only the distinct ones).

The product of its digits is 1176, while the sum is 26.

The square root of 671741 is about 819.5980722281. The cubic root of 671741 is about 87.5791284206.

The spelling of 671741 in words is "six hundred seventy-one thousand, seven hundred forty-one".