216872333 has 4 divisors (see below), whose sum is σ = 216924960. Its totient is φ = 216819708.

The previous prime is 216872303. The next prime is 216872339. The reversal of 216872333 is 333278612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 216872333 - 2²⁰ = 215823757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216872293 and 216872302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216872339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19553 + ... + 28566.

It is an arithmetic number, because the mean of its divisors is an integer number (54231240).

Almost surely, 2^216872333 is an apocalyptic number.

It is an amenable number.

216872333 is a deficient number, since it is larger than the sum of its proper divisors (52627).

216872333 is an equidigital number, since it uses as much as digits as its factorization.

216872333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52626.

The product of its digits is 36288, while the sum is 35.

The square root of 216872333 is about 14726.5859247824. The cubic root of 216872333 is about 600.8066308326.

The spelling of 216872333 in words is "two hundred sixteen million, eight hundred seventy-two thousand, three hundred thirty-three".