216414833 has 2 divisors, whose sum is σ = 216414834. Its totient is φ = 216414832.

The previous prime is 216414787. The next prime is 216414839. The reversal of 216414833 is 338414612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177875569 + 38539264 = 13337^2 + 6208^2 .

It is a cyclic number.

It is not a de Polignac number, because 216414833 - 2⁸ = 216414577 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 216414833.

It is not a weakly prime, because it can be changed into another prime (216414839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108207416 + 108207417.

It is an arithmetic number, because the mean of its divisors is an integer number (108207417).

Almost surely, 2^216414833 is an apocalyptic number.

It is an amenable number.

216414833 is a deficient number, since it is larger than the sum of its proper divisors (1).

216414833 is an equidigital number, since it uses as much as digits as its factorization.

216414833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 32.

The square root of 216414833 is about 14711.0445924142. The cubic root of 216414833 is about 600.3838589977.

The spelling of 216414833 in words is "two hundred sixteen million, four hundred fourteen thousand, eight hundred thirty-three".