32223213 has 12 divisors (see below), whose sum is σ = 50776128. Its totient is φ = 19529160.

The previous prime is 32223209. The next prime is 32223227. The reversal of 32223213 is 31232223.

It is a happy number.

It is not a de Polignac number, because 32223213 - 2² = 32223209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32223013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 162645 + ... + 162842.

It is an arithmetic number, because the mean of its divisors is an integer number (4231344).

Almost surely, 2^32223213 is an apocalyptic number.

32223213 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

32223213 is a deficient number, since it is larger than the sum of its proper divisors (18552915).

32223213 is a wasteful number, since it uses less digits than its factorization.

32223213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325504 (or 325501 counting only the distinct ones).

The product of its digits is 432, while the sum is 18.

The square root of 32223213 is about 5676.5493920162. The cubic root of 32223213 is about 318.2166851166.

Adding to 32223213 its reverse (31232223), we get a palindrome (63455436).

The spelling of 32223213 in words is "thirty-two million, two hundred twenty-three thousand, two hundred thirteen".