573643 has 12 divisors (see below), whose sum is σ = 697680. Its totient is φ = 469392.

The previous prime is 573637. The next prime is 573647. The reversal of 573643 is 346375.

It is not a de Polignac number, because 573643 - 2¹³ = 565451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (573647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 873 + ... + 1381.

It is an arithmetic number, because the mean of its divisors is an integer number (58140).

2⁵⁷³⁶⁴³ is an apocalyptic number.

573643 is a deficient number, since it is larger than the sum of its proper divisors (124037).

573643 is a wasteful number, since it uses less digits than its factorization.

573643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 539 counting only the distinct ones).

The product of its digits is 7560, while the sum is 28.

The square root of 573643 is about 757.3922365591. The cubic root of 573643 is about 83.0897080101.

The spelling of 573643 in words is "five hundred seventy-three thousand, six hundred forty-three".