216383613 has 8 divisors (see below), whose sum is σ = 290124000. Its totient is φ = 143449488.

The previous prime is 216383603. The next prime is 216383617. The reversal of 216383613 is 316383612.

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

It is not a de Polignac number, because 216383613 - 2⁴ = 216383597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216383617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200938 + ... + 202011.

It is an arithmetic number, because the mean of its divisors is an integer number (36265500).

Almost surely, 2^216383613 is an apocalyptic number.

It is an amenable number.

216383613 is a deficient number, since it is larger than the sum of its proper divisors (73740387).

216383613 is a wasteful number, since it uses less digits than its factorization.

216383613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403131.

The product of its digits is 15552, while the sum is 33.

The square root of 216383613 is about 14709.9834466256. The cubic root of 216383613 is about 600.3549871543.

Subtracting 216383613 from its reverse (316383612), we obtain a palindrome (99999999).

The spelling of 216383613 in words is "two hundred sixteen million, three hundred eighty-three thousand, six hundred thirteen".