9822197449 has 27 divisors (see below), whose sum is σ = 10686599469. Its totient is φ = 9026665560.

The previous prime is 9822197443. The next prime is 9822197461. The reversal of 9822197449 is 9447912289.

It is a happy number.

The square root of 9822197449 is 99107.

It is a perfect power (a square), and thus also a powerful number.

9822197449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-9822197449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9822197449.

It is not an unprimeable number, because it can be changed into a prime (9822197443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 70663222 + ... + 70663360.

Almost surely, 2^9822197449 is an apocalyptic number.

9822197449 is the 99107-th square number.

9822197449 is the 49554-th centered octagonal number.

It is an amenable number.

9822197449 is a deficient number, since it is larger than the sum of its proper divisors (864402020).

9822197449 is an equidigital number, since it uses as much as digits as its factorization.

9822197449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 193 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 55.

The cubic root of 9822197449 is about 2141.5894565519.

The spelling of 9822197449 in words is "nine billion, eight hundred twenty-two million, one hundred ninety-seven thousand, four hundred forty-nine".