423322213 has 4 divisors (see below), whose sum is σ = 424578700. Its totient is φ = 422065728.

The previous prime is 423322201. The next prime is 423322241. The reversal of 423322213 is 312223324.

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 88322404 + 334999809 = 9398^2 + 18303^2 .

It is a cyclic number.

It is not a de Polignac number, because 423322213 - 2²¹ = 421225061 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 (423322243) 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, 627738 + ... + 628411.

It is an arithmetic number, because the mean of its divisors is an integer number (106144675).

Almost surely, 2^423322213 is an apocalyptic number.

It is an amenable number.

423322213 is a deficient number, since it is larger than the sum of its proper divisors (1256487).

423322213 is a wasteful number, since it uses less digits than its factorization.

423322213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256486.

The product of its digits is 1728, while the sum is 22.

The square root of 423322213 is about 20574.7955761412. The cubic root of 423322213 is about 750.8566289137.

Adding to 423322213 its reverse (312223324), we get a palindrome (735545537).

The spelling of 423322213 in words is "four hundred twenty-three million, three hundred twenty-two thousand, two hundred thirteen".