216326337 has 16 divisors (see below), whose sum is σ = 297198720. Its totient is φ = 139897472.

The previous prime is 216326329. The next prime is 216326347. The reversal of 216326337 is 733623612.

It is a cyclic number.

It is not a de Polignac number, because 216326337 - 2³ = 216326329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 216326298 and 216326307.

It is not an unprimeable number, because it can be changed into a prime (216326347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6508 + ... + 21794.

It is an arithmetic number, because the mean of its divisors is an integer number (18574920).

Almost surely, 2^216326337 is an apocalyptic number.

It is an amenable number.

216326337 is a deficient number, since it is larger than the sum of its proper divisors (80872383).

216326337 is a wasteful number, since it uses less digits than its factorization.

216326337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15432.

The product of its digits is 27216, while the sum is 33.

The square root of 216326337 is about 14708.0364767021. The cubic root of 216326337 is about 600.3020118448.

Adding to 216326337 its reverse (733623612), we get a palindrome (949949949).

The spelling of 216326337 in words is "two hundred sixteen million, three hundred twenty-six thousand, three hundred thirty-seven".