32564437 has 2 divisors, whose sum is σ = 32564438. Its totient is φ = 32564436.

The previous prime is 32564417. The next prime is 32564443. The reversal of 32564437 is 73446523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22667121 + 9897316 = 4761^2 + 3146^2 .

It is a cyclic number.

It is not a de Polignac number, because 32564437 - 2¹⁹ = 32040149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32564407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16282218 + 16282219.

It is an arithmetic number, because the mean of its divisors is an integer number (16282219).

Almost surely, 2^32564437 is an apocalyptic number.

It is an amenable number.

32564437 is a deficient number, since it is larger than the sum of its proper divisors (1).

32564437 is an equidigital number, since it uses as much as digits as its factorization.

32564437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 34.

The square root of 32564437 is about 5706.5258257542. The cubic root of 32564437 is about 319.3359831090.

The spelling of 32564437 in words is "thirty-two million, five hundred sixty-four thousand, four hundred thirty-seven".