32664449 has 2 divisors, whose sum is σ = 32664450. Its totient is φ = 32664448.

The previous prime is 32664433. The next prime is 32664461. The reversal of 32664449 is 94446623.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32035600 + 628849 = 5660^2 + 793^2 .

It is an emirp because it is prime and its reverse (94446623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32664449 - 2⁴ = 32664433 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (32664409) 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, 16332224 + 16332225.

It is an arithmetic number, because the mean of its divisors is an integer number (16332225).

Almost surely, 2^32664449 is an apocalyptic number.

It is an amenable number.

32664449 is a deficient number, since it is larger than the sum of its proper divisors (1).

32664449 is an equidigital number, since it uses as much as digits as its factorization.

32664449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 38.

The square root of 32664449 is about 5715.2820577816. The cubic root of 32664449 is about 319.6625642254.

The spelling of 32664449 in words is "thirty-two million, six hundred sixty-four thousand, four hundred forty-nine".