216832943 has 6 divisors (see below), whose sum is σ = 230338416. Its totient is φ = 204077792.

The previous prime is 216832939. The next prime is 216832951. The reversal of 216832943 is 349238612.

It is not a de Polignac number, because 216832943 - 2² = 216832939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216832897 and 216832906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216832243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 374855 + ... + 375432.

It is an arithmetic number, because the mean of its divisors is an integer number (38389736).

Almost surely, 2^216832943 is an apocalyptic number.

216832943 is a deficient number, since it is larger than the sum of its proper divisors (13505473).

216832943 is an equidigital number, since it uses as much as digits as its factorization.

216832943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750321 (or 750304 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 216832943 is about 14725.2484868677. The cubic root of 216832943 is about 600.7702542760.

The spelling of 216832943 in words is "two hundred sixteen million, eight hundred thirty-two thousand, nine hundred forty-three".