6424223 has 16 divisors (see below), whose sum is σ = 7526400. Its totient is φ = 5430240.

The previous prime is 6424217. The next prime is 6424237. The reversal of 6424223 is 3224246.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6424223 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 (6424123) 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 15 ways as a sum of consecutive naturals, for example, 7238 + ... + 8076.

It is an arithmetic number, because the mean of its divisors is an integer number (470400).

Almost surely, 2^6424223 is an apocalyptic number.

6424223 is a deficient number, since it is larger than the sum of its proper divisors (1102177).

6424223 is a wasteful number, since it uses less digits than its factorization.

6424223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902.

The product of its digits is 2304, while the sum is 23.

The square root of 6424223 is about 2534.6050974461. The cubic root of 6424223 is about 185.8974942955.

Adding to 6424223 its sum of digits (23), we get a palindrome (6424246).

Adding to 6424223 its reverse (3224246), we get a palindrome (9648469).

The spelling of 6424223 in words is "six million, four hundred twenty-four thousand, two hundred twenty-three".