4397923 has 2 divisors, whose sum is σ = 4397924. Its totient is φ = 4397922.

The previous prime is 4397909. The next prime is 4397933. The reversal of 4397923 is 3297934.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4397923 - 2¹³ = 4389731 is a prime.

It is not a weakly prime, because it can be changed into another prime (4397933) 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, 2198961 + 2198962.

It is an arithmetic number, because the mean of its divisors is an integer number (2198962).

Almost surely, 2^4397923 is an apocalyptic number.

4397923 is a deficient number, since it is larger than the sum of its proper divisors (1).

4397923 is an equidigital number, since it uses as much as digits as its factorization.

4397923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 37.

The square root of 4397923 is about 2097.1225524513. The cubic root of 4397923 is about 163.8384662699.

The spelling of 4397923 in words is "four million, three hundred ninety-seven thousand, nine hundred twenty-three".