216233719 has 4 divisors (see below), whose sum is σ = 232867096. Its totient is φ = 199600344.

The previous prime is 216233687. The next prime is 216233753. The reversal of 216233719 is 917332612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 216233719 - 2⁵ = 216233687 is a prime.

It is a super-3 number, since 3×216233719³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216233779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8316669 + ... + 8316694.

It is an arithmetic number, because the mean of its divisors is an integer number (58216774).

Almost surely, 2^216233719 is an apocalyptic number.

216233719 is a deficient number, since it is larger than the sum of its proper divisors (16633377).

216233719 is a wasteful number, since it uses less digits than its factorization.

216233719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16633376.

The product of its digits is 13608, while the sum is 34.

The square root of 216233719 is about 14704.8875888257. The cubic root of 216233719 is about 600.2163284754.

The spelling of 216233719 in words is "two hundred sixteen million, two hundred thirty-three thousand, seven hundred nineteen".