9997441 has 2 divisors, whose sum is σ = 9997442. Its totient is φ = 9997440.

The previous prime is 9997397. The next prime is 9997451. The reversal of 9997441 is 1447999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5157441 + 4840000 = 2271^2 + 2200^2 .

It is a cyclic number.

It is not a de Polignac number, because 9997441 - 2⁹ = 9996929 is a prime.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (9997451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4998720 + 4998721.

It is an arithmetic number, because the mean of its divisors is an integer number (4998721).

Almost surely, 2^9997441 is an apocalyptic number.

It is an amenable number.

9997441 is a deficient number, since it is larger than the sum of its proper divisors (1).

9997441 is an equidigital number, since it uses as much as digits as its factorization.

9997441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 43.

The square root of 9997441 is about 3161.8730208533. The cubic root of 9997441 is about 215.4250901075.

The spelling of 9997441 in words is "nine million, nine hundred ninety-seven thousand, four hundred forty-one".