44321009 has 2 divisors, whose sum is σ = 44321010. Its totient is φ = 44321008.

The previous prime is 44320987. The next prime is 44321029. The reversal of 44321009 is 90012344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43930384 + 390625 = 6628^2 + 625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44321009 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 (44321029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22160504 + 22160505.

It is an arithmetic number, because the mean of its divisors is an integer number (22160505).

Almost surely, 2^44321009 is an apocalyptic number.

It is an amenable number.

44321009 is a deficient number, since it is larger than the sum of its proper divisors (1).

44321009 is an equidigital number, since it uses as much as digits as its factorization.

44321009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 44321009 is about 6657.4025715740. The cubic root of 44321009 is about 353.8912946785.

The spelling of 44321009 in words is "forty-four million, three hundred twenty-one thousand, nine".