423075329 has 2 divisors, whose sum is σ = 423075330. Its totient is φ = 423075328.

The previous prime is 423075293. The next prime is 423075391. The reversal of 423075329 is 923570324.

Together with previous prime (423075293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236698225 + 186377104 = 15385^2 + 13652^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423075329 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (423075929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211537664 + 211537665.

It is an arithmetic number, because the mean of its divisors is an integer number (211537665).

Almost surely, 2^423075329 is an apocalyptic number.

It is an amenable number.

423075329 is a deficient number, since it is larger than the sum of its proper divisors (1).

423075329 is an equidigital number, since it uses as much as digits as its factorization.

423075329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 423075329 is about 20568.7950303366. The cubic root of 423075329 is about 750.7106325300.

The spelling of 423075329 in words is "four hundred twenty-three million, seventy-five thousand, three hundred twenty-nine".