9744443321 has 4 divisors (see below), whose sum is σ = 10007806692. Its totient is φ = 9481079952.

The previous prime is 9744443239. The next prime is 9744443339. The reversal of 9744443321 is 1233444479.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4482972025 + 5261471296 = 66955^2 + 72536^2 .

It is a cyclic number.

It is not a de Polignac number, because 9744443321 - 2¹⁰ = 9744442297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (9744443021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131681630 + ... + 131681703.

It is an arithmetic number, because the mean of its divisors is an integer number (2501951673).

Almost surely, 2^9744443321 is an apocalyptic number.

It is an amenable number.

9744443321 is a deficient number, since it is larger than the sum of its proper divisors (263363371).

9744443321 is a wasteful number, since it uses less digits than its factorization.

9744443321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263363370.

The product of its digits is 290304, while the sum is 41.

The square root of 9744443321 is about 98713.9469426686. The cubic root of 9744443321 is about 2135.9234211144.

The spelling of 9744443321 in words is "nine billion, seven hundred forty-four million, four hundred forty-three thousand, three hundred twenty-one".