216832871 has 2 divisors, whose sum is σ = 216832872. Its totient is φ = 216832870.

The previous prime is 216832867. The next prime is 216832901. The reversal of 216832871 is 178238612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216832871 - 2² = 216832867 is a prime.

It is a super-2 number, since 2×216832871² = 94032987892205282, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216832831) 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, 108416435 + 108416436.

It is an arithmetic number, because the mean of its divisors is an integer number (108416436).

Almost surely, 2^216832871 is an apocalyptic number.

216832871 is a deficient number, since it is larger than the sum of its proper divisors (1).

216832871 is an equidigital number, since it uses as much as digits as its factorization.

216832871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 38.

The square root of 216832871 is about 14725.2460420870. The cubic root of 216832871 is about 600.7701877801.

The spelling of 216832871 in words is "two hundred sixteen million, eight hundred thirty-two thousand, eight hundred seventy-one".