6221323 has 4 divisors (see below), whose sum is σ = 6226528. Its totient is φ = 6216120.

The previous prime is 6221317. The next prime is 6221377. The reversal of 6221323 is 3231226.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3231226 = 2 ⋅1615613.

It is a cyclic number.

It is not a de Polignac number, because 6221323 - 2¹⁷ = 6090251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6221323.

It is not an unprimeable number, because it can be changed into a prime (6221023) 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, 190 + ... + 3532.

It is an arithmetic number, because the mean of its divisors is an integer number (1556632).

Almost surely, 2^6221323 is an apocalyptic number.

6221323 is a deficient number, since it is larger than the sum of its proper divisors (5205).

6221323 is a wasteful number, since it uses less digits than its factorization.

6221323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5204.

The product of its digits is 432, while the sum is 19.

The square root of 6221323 is about 2494.2580059008. The cubic root of 6221323 is about 183.9194176917.

Adding to 6221323 its reverse (3231226), we get a palindrome (9452549).

The spelling of 6221323 in words is "six million, two hundred twenty-one thousand, three hundred twenty-three".