423365567 has 2 divisors, whose sum is σ = 423365568. Its totient is φ = 423365566.

The previous prime is 423365557. The next prime is 423365597. The reversal of 423365567 is 765563324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423365567 - 2⁸ = 423365311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423365557) 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, 211682783 + 211682784.

It is an arithmetic number, because the mean of its divisors is an integer number (211682784).

Almost surely, 2^423365567 is an apocalyptic number.

423365567 is a deficient number, since it is larger than the sum of its proper divisors (1).

423365567 is an equidigital number, since it uses as much as digits as its factorization.

423365567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 41.

The square root of 423365567 is about 20575.8491197812. The cubic root of 423365567 is about 750.8822607107.

The spelling of 423365567 in words is "four hundred twenty-three million, three hundred sixty-five thousand, five hundred sixty-seven".