216324463 has 2 divisors, whose sum is σ = 216324464. Its totient is φ = 216324462.

The previous prime is 216324461. The next prime is 216324467. The reversal of 216324463 is 364423612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216324463 - 2¹ = 216324461 is a prime.

Together with 216324461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216324461) 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, 108162231 + 108162232.

It is an arithmetic number, because the mean of its divisors is an integer number (108162232).

Almost surely, 2^216324463 is an apocalyptic number.

216324463 is a deficient number, since it is larger than the sum of its proper divisors (1).

216324463 is an equidigital number, since it uses as much as digits as its factorization.

216324463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 31.

The square root of 216324463 is about 14707.9727698959. The cubic root of 216324463 is about 600.3002784001.

The spelling of 216324463 in words is "two hundred sixteen million, three hundred twenty-four thousand, four hundred sixty-three".