32671321 has 2 divisors, whose sum is σ = 32671322. Its totient is φ = 32671320.

The previous prime is 32671307. The next prime is 32671361. The reversal of 32671321 is 12317623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18147600 + 14523721 = 4260^2 + 3811^2 .

It is an emirp because it is prime and its reverse (12317623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32671321 - 2²¹ = 30574169 is a prime.

It is not a weakly prime, because it can be changed into another prime (32671361) 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 as a sum of consecutive naturals, namely, 16335660 + 16335661.

It is an arithmetic number, because the mean of its divisors is an integer number (16335661).

Almost surely, 2^32671321 is an apocalyptic number.

It is an amenable number.

32671321 is a deficient number, since it is larger than the sum of its proper divisors (1).

32671321 is an equidigital number, since it uses as much as digits as its factorization.

32671321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 25.

The square root of 32671321 is about 5715.8832213403. The cubic root of 32671321 is about 319.6849796972.

Adding to 32671321 its reverse (12317623), we get a palindrome (44988944).

The spelling of 32671321 in words is "thirty-two million, six hundred seventy-one thousand, three hundred twenty-one".