4099723 has 2 divisors, whose sum is σ = 4099724. Its totient is φ = 4099722.

The previous prime is 4099721. The next prime is 4099729. The reversal of 4099723 is 3279904.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4099723 - 2¹ = 4099721 is a prime.

Together with 4099721, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4099721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2049861 + 2049862.

It is an arithmetic number, because the mean of its divisors is an integer number (2049862).

Almost surely, 2^4099723 is an apocalyptic number.

4099723 is a deficient number, since it is larger than the sum of its proper divisors (1).

4099723 is an equidigital number, since it uses as much as digits as its factorization.

4099723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 4099723 is about 2024.7772717018. Note that the first 3 decimals coincide. The cubic root of 4099723 is about 160.0484618826.

The spelling of 4099723 in words is "four million, ninety-nine thousand, seven hundred twenty-three".