216608363 has 2 divisors, whose sum is σ = 216608364. Its totient is φ = 216608362.

The previous prime is 216608321. The next prime is 216608401. The reversal of 216608363 is 363806612.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216608363 is a prime.

It is not a weakly prime, because it can be changed into another prime (215608363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108304181 + 108304182.

It is an arithmetic number, because the mean of its divisors is an integer number (108304182).

Almost surely, 2^216608363 is an apocalyptic number.

216608363 is a deficient number, since it is larger than the sum of its proper divisors (1).

216608363 is an equidigital number, since it uses as much as digits as its factorization.

216608363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 216608363 is about 14717.6208335451. The cubic root of 216608363 is about 600.5627710569.

The spelling of 216608363 in words is "two hundred sixteen million, six hundred eight thousand, three hundred sixty-three".