44564209 has 2 divisors, whose sum is σ = 44564210. Its totient is φ = 44564208.

The previous prime is 44564189. The next prime is 44564227. The reversal of 44564209 is 90246544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31080625 + 13483584 = 5575^2 + 3672^2 .

It is a cyclic number.

It is not a de Polignac number, because 44564209 - 2¹⁹ = 44039921 is a prime.

It is not a weakly prime, because it can be changed into another prime (44564239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22282104 + 22282105.

It is an arithmetic number, because the mean of its divisors is an integer number (22282105).

Almost surely, 2^44564209 is an apocalyptic number.

It is an amenable number.

44564209 is a deficient number, since it is larger than the sum of its proper divisors (1).

44564209 is an equidigital number, since it uses as much as digits as its factorization.

44564209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 44564209 is about 6675.6429652881. The cubic root of 44564209 is about 354.5374097730.

The spelling of 44564209 in words is "forty-four million, five hundred sixty-four thousand, two hundred nine".