671133 has 4 divisors (see below), whose sum is σ = 894848. Its totient is φ = 447420.

The previous prime is 671131. The next prime is 671141. The reversal of 671133 is 331176.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 671133 - 2¹ = 671131 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671131) 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, 111853 + ... + 111858.

It is an arithmetic number, because the mean of its divisors is an integer number (223712).

2⁶⁷¹¹³³ is an apocalyptic number.

It is an amenable number.

671133 is a deficient number, since it is larger than the sum of its proper divisors (223715).

671133 is a wasteful number, since it uses less digits than its factorization.

671133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223714.

The product of its digits is 378, while the sum is 21.

The square root of 671133 is about 819.2270747479. The cubic root of 671133 is about 87.5526975079.

The spelling of 671133 in words is "six hundred seventy-one thousand, one hundred thirty-three".