216082943 has 4 divisors (see below), whose sum is σ = 216113088. Its totient is φ = 216052800.

The previous prime is 216082931. The next prime is 216082967. The reversal of 216082943 is 349280612.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 216082943 - 2⁶ = 216082879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216082913) 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 in 3 ways as a sum of consecutive naturals, for example, 2543 + ... + 20943.

It is an arithmetic number, because the mean of its divisors is an integer number (54028272).

Almost surely, 2^216082943 is an apocalyptic number.

216082943 is a deficient number, since it is larger than the sum of its proper divisors (30145).

216082943 is a wasteful number, since it uses less digits than its factorization.

216082943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30144.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 216082943 is about 14699.7599640266. The cubic root of 216082943 is about 600.0767892460.

The spelling of 216082943 in words is "two hundred sixteen million, eighty-two thousand, nine hundred forty-three".