671343 has 4 divisors (see below), whose sum is σ = 895128. Its totient is φ = 447560.

The previous prime is 671339. The next prime is 671353. The reversal of 671343 is 343176.

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

It is a cyclic number.

It is not a de Polignac number, because 671343 - 2² = 671339 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111888 + ... + 111893.

It is an arithmetic number, because the mean of its divisors is an integer number (223782).

2⁶⁷¹³⁴³ is an apocalyptic number.

671343 is a deficient number, since it is larger than the sum of its proper divisors (223785).

671343 is a wasteful number, since it uses less digits than its factorization.

671343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223784.

The product of its digits is 1512, while the sum is 24.

The square root of 671343 is about 819.3552343154. The cubic root of 671343 is about 87.5618284100.

The spelling of 671343 in words is "six hundred seventy-one thousand, three hundred forty-three".