216432323 has 8 divisors (see below), whose sum is σ = 227017248. Its totient is φ = 205945344.

The previous prime is 216432319. The next prime is 216432341. The reversal of 216432323 is 323234612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216432323 - 2² = 216432319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216432292 and 216432301.

It is not an unprimeable number, because it can be changed into a prime (216432023) 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 7 ways as a sum of consecutive naturals, for example, 19940 + ... + 28817.

It is an arithmetic number, because the mean of its divisors is an integer number (28377156).

Almost surely, 2^216432323 is an apocalyptic number.

216432323 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

216432323 is a deficient number, since it is larger than the sum of its proper divisors (10584925).

216432323 is a wasteful number, since it uses less digits than its factorization.

216432323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48973.

The product of its digits is 5184, while the sum is 26.

The square root of 216432323 is about 14711.6390317327. The cubic root of 216432323 is about 600.4000323051.

Adding to 216432323 its reverse (323234612), we get a palindrome (539666935).

The spelling of 216432323 in words is "two hundred sixteen million, four hundred thirty-two thousand, three hundred twenty-three".