216348463 has 2 divisors, whose sum is σ = 216348464. Its totient is φ = 216348462.

The previous prime is 216348449. The next prime is 216348469. The reversal of 216348463 is 364843612.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216348463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216348469) 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, 108174231 + 108174232.

It is an arithmetic number, because the mean of its divisors is an integer number (108174232).

Almost surely, 2^216348463 is an apocalyptic number.

216348463 is a deficient number, since it is larger than the sum of its proper divisors (1).

216348463 is an equidigital number, since it uses as much as digits as its factorization.

216348463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 37.

The square root of 216348463 is about 14708.7886312912. The cubic root of 216348463 is about 600.3224775752.

It can be divided in two parts, 216348 and 463, that added together give a triangular number (216811 = T₆₅₈).

The spelling of 216348463 in words is "two hundred sixteen million, three hundred forty-eight thousand, four hundred sixty-three".