423446173 has 2 divisors, whose sum is σ = 423446174. Its totient is φ = 423446172.

The previous prime is 423446131. The next prime is 423446207. The reversal of 423446173 is 371644324.

It is an a-pointer prime, because the next prime (423446207) can be obtained adding 423446173 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220611609 + 202834564 = 14853^2 + 14242^2 .

It is a cyclic number.

It is not a de Polignac number, because 423446173 - 2⁹ = 423445661 is a prime.

It is a super-2 number, since 2×423446173² = 358613322856691858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423446273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211723086 + 211723087.

It is an arithmetic number, because the mean of its divisors is an integer number (211723087).

Almost surely, 2^423446173 is an apocalyptic number.

It is an amenable number.

423446173 is a deficient number, since it is larger than the sum of its proper divisors (1).

423446173 is an equidigital number, since it uses as much as digits as its factorization.

423446173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 34.

The square root of 423446173 is about 20577.8077792558. The cubic root of 423446173 is about 750.9299120231.

The spelling of 423446173 in words is "four hundred twenty-three million, four hundred forty-six thousand, one hundred seventy-three".