573217 has 4 divisors (see below), whose sum is σ = 582676. Its totient is φ = 563760.

The previous prime is 573197. The next prime is 573247. The reversal of 573217 is 712375.

573217 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 can be written as a sum of positive squares in 2 ways, for example, as 9216 + 564001 = 96^2 + 751^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-573217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 573191 and 573200.

It is not an unprimeable number, because it can be changed into a prime (573247) 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, 4638 + ... + 4759.

It is an arithmetic number, because the mean of its divisors is an integer number (145669).

2⁵⁷³²¹⁷ is an apocalyptic number.

It is an amenable number.

573217 is a deficient number, since it is larger than the sum of its proper divisors (9459).

573217 is an equidigital number, since it uses as much as digits as its factorization.

573217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9458.

The product of its digits is 1470, while the sum is 25.

The square root of 573217 is about 757.1109562013. The cubic root of 573217 is about 83.0691348306.

The spelling of 573217 in words is "five hundred seventy-three thousand, two hundred seventeen".