671043 has 4 divisors (see below), whose sum is σ = 894728. Its totient is φ = 447360.

The previous prime is 671039. The next prime is 671059. The reversal of 671043 is 340176.

671043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 671043 - 2² = 671039 is a prime.

It is a super-3 number, since 3×671043³ = 906509387433349521, which contains 333 as substring.

It is a D-number.

It is a Duffinian number.

671043 is a lucky number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (671003) 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, 111838 + ... + 111843.

It is an arithmetic number, because the mean of its divisors is an integer number (223682).

2⁶⁷¹⁰⁴³ is an apocalyptic number.

671043 is a deficient number, since it is larger than the sum of its proper divisors (223685).

671043 is a wasteful number, since it uses less digits than its factorization.

671043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223684.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 671043 is about 819.1721430810. The cubic root of 671043 is about 87.5487836810.

The spelling of 671043 in words is "six hundred seventy-one thousand, forty-three".