423304073 has 2 divisors, whose sum is σ = 423304074. Its totient is φ = 423304072.

The previous prime is 423304069. The next prime is 423304093. The reversal of 423304073 is 370403324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 241243024 + 182061049 = 15532^2 + 13493^2 .

It is a cyclic number.

It is not a de Polignac number, because 423304073 - 2² = 423304069 is a prime.

It is equal to p_22510925 and since 423304073 and 22510925 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (423304093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211652036 + 211652037.

It is an arithmetic number, because the mean of its divisors is an integer number (211652037).

Almost surely, 2^423304073 is an apocalyptic number.

It is an amenable number.

423304073 is a deficient number, since it is larger than the sum of its proper divisors (1).

423304073 is an equidigital number, since it uses as much as digits as its factorization.

423304073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 26.

The square root of 423304073 is about 20574.3547407932. The cubic root of 423304073 is about 750.8459036447.

Adding to 423304073 its reverse (370403324), we get a palindrome (793707397).

The spelling of 423304073 in words is "four hundred twenty-three million, three hundred four thousand, seventy-three".