32221073 has 2 divisors, whose sum is σ = 32221074. Its totient is φ = 32221072.

The previous prime is 32221067. The next prime is 32221081. The reversal of 32221073 is 37012223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30393169 + 1827904 = 5513^2 + 1352^2 .

It is a cyclic number.

It is not a de Polignac number, because 32221073 - 2⁸ = 32220817 is a prime.

It is not a weakly prime, because it can be changed into another prime (32221003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16110536 + 16110537.

It is an arithmetic number, because the mean of its divisors is an integer number (16110537).

Almost surely, 2^32221073 is an apocalyptic number.

It is an amenable number.

32221073 is a deficient number, since it is larger than the sum of its proper divisors (1).

32221073 is an equidigital number, since it uses as much as digits as its factorization.

32221073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 32221073 is about 5676.3608940940. The cubic root of 32221073 is about 318.2096405182.

Adding to 32221073 its reverse (37012223), we get a palindrome (69233296).

The spelling of 32221073 in words is "thirty-two million, two hundred twenty-one thousand, seventy-three".