32564321 has 2 divisors, whose sum is σ = 32564322. Its totient is φ = 32564320.

The previous prime is 32564317. The next prime is 32564327. The reversal of 32564321 is 12346523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16851025 + 15713296 = 4105^2 + 3964^2 .

It is a cyclic number.

It is not a de Polignac number, because 32564321 - 2² = 32564317 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (32564327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16282160 + 16282161.

It is an arithmetic number, because the mean of its divisors is an integer number (16282161).

Almost surely, 2^32564321 is an apocalyptic number.

It is an amenable number.

32564321 is a deficient number, since it is larger than the sum of its proper divisors (1).

32564321 is an equidigital number, since it uses as much as digits as its factorization.

32564321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 26.

The square root of 32564321 is about 5706.5156619429. The cubic root of 32564321 is about 319.3356039324.

It can be divided in two parts, 325 and 64321, that added together give a palindrome (64646).

The spelling of 32564321 in words is "thirty-two million, five hundred sixty-four thousand, three hundred twenty-one".