423281473 has 2 divisors, whose sum is σ = 423281474. Its totient is φ = 423281472.

The previous prime is 423281459. The next prime is 423281513. The reversal of 423281473 is 374182324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 344213809 + 79067664 = 18553^2 + 8892^2 .

It is a cyclic number.

It is not a de Polignac number, because 423281473 - 2⁹ = 423280961 is a prime.

It is not a weakly prime, because it can be changed into another prime (423281413) 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, 211640736 + 211640737.

It is an arithmetic number, because the mean of its divisors is an integer number (211640737).

Almost surely, 2^423281473 is an apocalyptic number.

It is an amenable number.

423281473 is a deficient number, since it is larger than the sum of its proper divisors (1).

423281473 is an equidigital number, since it uses as much as digits as its factorization.

423281473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 34.

The square root of 423281473 is about 20573.8055060312. The cubic root of 423281473 is about 750.8325409736.

The spelling of 423281473 in words is "four hundred twenty-three million, two hundred eighty-one thousand, four hundred seventy-three".