606323221 has 4 divisors (see below), whose sum is σ = 692940832. Its totient is φ = 519705612.

The previous prime is 606323219. The next prime is 606323227. The reversal of 606323221 is 122323606.

It is a happy number.

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 606323221 - 2¹ = 606323219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (606323227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43308795 + ... + 43308808.

It is an arithmetic number, because the mean of its divisors is an integer number (173235208).

Almost surely, 2^606323221 is an apocalyptic number.

It is an amenable number.

606323221 is a deficient number, since it is larger than the sum of its proper divisors (86617611).

606323221 is an equidigital number, since it uses as much as digits as its factorization.

606323221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86617610.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 606323221 is about 24623.6313528285. The cubic root of 606323221 is about 846.3852125388.

Adding to 606323221 its reverse (122323606), we get a palindrome (728646827).

The spelling of 606323221 in words is "six hundred six million, three hundred twenty-three thousand, two hundred twenty-one".