573421 has 4 divisors (see below), whose sum is σ = 583200. Its totient is φ = 563644.

The previous prime is 573409. The next prime is 573437. The reversal of 573421 is 124375.

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 a cyclic number.

It is not a de Polignac number, because 573421 - 2⁹ = 572909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 573392 and 573401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (573451) 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, 4801 + ... + 4918.

It is an arithmetic number, because the mean of its divisors is an integer number (145800).

2⁵⁷³⁴²¹ is an apocalyptic number.

It is an amenable number.

573421 is a deficient number, since it is larger than the sum of its proper divisors (9779).

573421 is an equidigital number, since it uses as much as digits as its factorization.

573421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9778.

The product of its digits is 840, while the sum is 22.

The square root of 573421 is about 757.2456668744. The cubic root of 573421 is about 83.0789880471.

Adding to 573421 its reverse (124375), we get a palindrome (697796).

The spelling of 573421 in words is "five hundred seventy-three thousand, four hundred twenty-one".