6352221 has 8 divisors (see below), whose sum is σ = 8496544. Its totient is φ = 4221360.

The previous prime is 6352219. The next prime is 6352243. The reversal of 6352221 is 1222536.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6352221 - 2¹ = 6352219 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 (6352201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2206 + ... + 4191.

It is an arithmetic number, because the mean of its divisors is an integer number (1062068).

Almost surely, 2^6352221 is an apocalyptic number.

It is an amenable number.

6352221 is a deficient number, since it is larger than the sum of its proper divisors (2144323).

6352221 is a wasteful number, since it uses less digits than its factorization.

6352221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6731.

The product of its digits is 720, while the sum is 21.

The square root of 6352221 is about 2520.3612836258. The cubic root of 6352221 is about 185.2003769972.

Adding to 6352221 its reverse (1222536), we get a palindrome (7574757).

The spelling of 6352221 in words is "six million, three hundred fifty-two thousand, two hundred twenty-one".