570421 has 2 divisors, whose sum is σ = 570422. Its totient is φ = 570420.

The previous prime is 570419. The next prime is 570461. The reversal of 570421 is 124075.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 562500 + 7921 = 750^2 + 89^2 .

It is a cyclic number.

It is not a de Polignac number, because 570421 - 2¹ = 570419 is a prime.

Together with 570419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (570461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285210 + 285211.

It is an arithmetic number, because the mean of its divisors is an integer number (285211).

2⁵⁷⁰⁴²¹ is an apocalyptic number.

It is an amenable number.

570421 is a deficient number, since it is larger than the sum of its proper divisors (1).

570421 is an equidigital number, since it uses as much as digits as its factorization.

570421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 570421 is about 755.2622061245. The cubic root of 570421 is about 82.9338515876.

Adding to 570421 its reverse (124075), we get a palindrome (694496).

The spelling of 570421 in words is "five hundred seventy thousand, four hundred twenty-one".