9744391 has 2 divisors, whose sum is σ = 9744392. Its totient is φ = 9744390.

The previous prime is 9744389. The next prime is 9744401. The reversal of 9744391 is 1934479.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9744391 - 2¹ = 9744389 is a prime.

Together with 9744389, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9744391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9744331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4872195 + 4872196.

It is an arithmetic number, because the mean of its divisors is an integer number (4872196).

Almost surely, 2^9744391 is an apocalyptic number.

9744391 is a deficient number, since it is larger than the sum of its proper divisors (1).

9744391 is an equidigital number, since it uses as much as digits as its factorization.

9744391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 37.

The square root of 9744391 is about 3121.6007111737. The cubic root of 9744391 is about 213.5919598291.

The spelling of 9744391 in words is "nine million, seven hundred forty-four thousand, three hundred ninety-one".