573943 has 4 divisors (see below), whose sum is σ = 575640. Its totient is φ = 572248.

The previous prime is 573941. The next prime is 573953. The reversal of 573943 is 349375.

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 573943 - 2¹ = 573941 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 5⁵ + 7 + 9⁶ + 3⁹ + 4 + 3⁹ .

It is a Duffinian number.

573943 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (573941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148 + ... + 1081.

It is an arithmetic number, because the mean of its divisors is an integer number (143910).

2⁵⁷³⁹⁴³ is an apocalyptic number.

573943 is a deficient number, since it is larger than the sum of its proper divisors (1697).

573943 is a wasteful number, since it uses less digits than its factorization.

573943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696.

The product of its digits is 11340, while the sum is 31.

The square root of 573943 is about 757.5902586491. The cubic root of 573943 is about 83.1041900534.

The spelling of 573943 in words is "five hundred seventy-three thousand, nine hundred forty-three".