423727723 has 2 divisors, whose sum is σ = 423727724. Its totient is φ = 423727722.

The previous prime is 423727709. The next prime is 423727727. The reversal of 423727723 is 327727324.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423727723 - 2¹³ = 423719531 is a prime.

It is not a weakly prime, because it can be changed into another prime (423727727) 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, 211863861 + 211863862.

It is an arithmetic number, because the mean of its divisors is an integer number (211863862).

Almost surely, 2^423727723 is an apocalyptic number.

423727723 is a deficient number, since it is larger than the sum of its proper divisors (1).

423727723 is an equidigital number, since it uses as much as digits as its factorization.

423727723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98784, while the sum is 37.

The square root of 423727723 is about 20584.6477502045. The cubic root of 423727723 is about 751.0963066275.

The spelling of 423727723 in words is "four hundred twenty-three million, seven hundred twenty-seven thousand, seven hundred twenty-three".