216298063 has 2 divisors, whose sum is σ = 216298064. Its totient is φ = 216298062.

The previous prime is 216298031. The next prime is 216298081. The reversal of 216298063 is 360892612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 216298063 - 2⁵ = 216298031 is a prime.

It is a super-3 number, since 3×216298063³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210298063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108149031 + 108149032.

It is an arithmetic number, because the mean of its divisors is an integer number (108149032).

Almost surely, 2^216298063 is an apocalyptic number.

216298063 is a deficient number, since it is larger than the sum of its proper divisors (1).

216298063 is an equidigital number, since it uses as much as digits as its factorization.

216298063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 216298063 is about 14707.0752700868. The cubic root of 216298063 is about 600.2758574110.

It can be divided in two parts, 21629 and 8063, that added together give a palindrome (29692).

The spelling of 216298063 in words is "two hundred sixteen million, two hundred ninety-eight thousand, sixty-three".