600421 has 2 divisors, whose sum is σ = 600422. Its totient is φ = 600420.

The previous prime is 600407. The next prime is 600433. The reversal of 600421 is 124006.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 429025 + 171396 = 655^2 + 414^2 .

It is a cyclic number.

It is not a de Polignac number, because 600421 - 2⁷ = 600293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (600401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300210 + 300211.

It is an arithmetic number, because the mean of its divisors is an integer number (300211).

2⁶⁰⁰⁴²¹ is an apocalyptic number.

It is an amenable number.

600421 is a deficient number, since it is larger than the sum of its proper divisors (1).

600421 is an equidigital number, since it uses as much as digits as its factorization.

600421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 600421 is about 774.8683759194. The cubic root of 600421 is about 84.3629888710.

Adding to 600421 its reverse (124006), we get a palindrome (724427).

The spelling of 600421 in words is "six hundred thousand, four hundred twenty-one".