923449 has 2 divisors, whose sum is σ = 923450. Its totient is φ = 923448.

The previous prime is 923441. The next prime is 923453. The reversal of 923449 is 944329.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 921600 + 1849 = 960^2 + 43^2 .

It is an emirp because it is prime and its reverse (944329) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 923449 - 2³ = 923441 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 923449.

It is not a weakly prime, because it can be changed into another prime (923441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461724 + 461725.

It is an arithmetic number, because the mean of its divisors is an integer number (461725).

2⁹²³⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

923449 is a deficient number, since it is larger than the sum of its proper divisors (1).

923449 is an equidigital number, since it uses as much as digits as its factorization.

923449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 31.

The square root of 923449 is about 960.9625382917. The cubic root of 923449 is about 97.3802694231.

Adding to 923449 its product of digits (7776), we get a square (931225 = 965²).

The spelling of 923449 in words is "nine hundred twenty-three thousand, four hundred forty-nine".