4399123 has 2 divisors, whose sum is σ = 4399124. Its totient is φ = 4399122.

The previous prime is 4399103. The next prime is 4399133. The reversal of 4399123 is 3219934.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4399123 is a prime.

It is not a weakly prime, because it can be changed into another prime (4399103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2199561 + 2199562.

It is an arithmetic number, because the mean of its divisors is an integer number (2199562).

Almost surely, 2^4399123 is an apocalyptic number.

4399123 is a deficient number, since it is larger than the sum of its proper divisors (1).

4399123 is an equidigital number, since it uses as much as digits as its factorization.

4399123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 31.

The square root of 4399123 is about 2097.4086392499. The cubic root of 4399123 is about 163.8533663550.

The spelling of 4399123 in words is "four million, three hundred ninety-nine thousand, one hundred twenty-three".