622213 has 4 divisors (see below), whose sum is σ = 623808. Its totient is φ = 620620.

The previous prime is 622189. The next prime is 622241. The reversal of 622213 is 312226.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 622213 - 2⁹ = 621701 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 (622243) 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, 228 + ... + 1138.

It is an arithmetic number, because the mean of its divisors is an integer number (155952).

2⁶²²²¹³ is an apocalyptic number.

It is an amenable number.

622213 is a deficient number, since it is larger than the sum of its proper divisors (1595).

622213 is an equidigital number, since it uses as much as digits as its factorization.

622213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594.

The product of its digits is 144, while the sum is 16.

The square root of 622213 is about 788.8047920747. The cubic root of 622213 is about 85.3715225524.

Adding to 622213 its reverse (312226), we get a palindrome (934439).

The spelling of 622213 in words is "six hundred twenty-two thousand, two hundred thirteen".