9923449 has 2 divisors, whose sum is σ = 9923450. Its totient is φ = 9923448.

The previous prime is 9923429. The next prime is 9923467. The reversal of 9923449 is 9443299.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5257849 + 4665600 = 2293^2 + 2160^2 .

It is a cyclic number.

It is not a de Polignac number, because 9923449 - 2⁹ = 9922937 is a prime.

It is not a weakly prime, because it can be changed into another prime (9923429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4961724 + 4961725.

It is an arithmetic number, because the mean of its divisors is an integer number (4961725).

Almost surely, 2^9923449 is an apocalyptic number.

It is an amenable number.

9923449 is a deficient number, since it is larger than the sum of its proper divisors (1).

9923449 is an equidigital number, since it uses as much as digits as its factorization.

9923449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 40.

The square root of 9923449 is about 3150.1506313191. The cubic root of 9923449 is about 214.8923131172.

The spelling of 9923449 in words is "nine million, nine hundred twenty-three thousand, four hundred forty-nine".