423495547 has 2 divisors, whose sum is σ = 423495548. Its totient is φ = 423495546.

The previous prime is 423495539. The next prime is 423495581. The reversal of 423495547 is 745594324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423495547 - 2³ = 423495539 is a prime.

It is not a weakly prime, because it can be changed into another prime (423495587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211747773 + 211747774.

It is an arithmetic number, because the mean of its divisors is an integer number (211747774).

Almost surely, 2^423495547 is an apocalyptic number.

423495547 is a deficient number, since it is larger than the sum of its proper divisors (1).

423495547 is an equidigital number, since it uses as much as digits as its factorization.

423495547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 43.

The square root of 423495547 is about 20579.0074347623. The cubic root of 423495547 is about 750.9590971356.

The spelling of 423495547 in words is "four hundred twenty-three million, four hundred ninety-five thousand, five hundred forty-seven".