216324293 has 8 divisors (see below), whose sum is σ = 223491840. Its totient is φ = 209168640.

The previous prime is 216324281. The next prime is 216324301. The reversal of 216324293 is 392423612.

216324293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 216324293 - 2⁸ = 216324037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216324263) 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, 48293 + ... + 52581.

It is an arithmetic number, because the mean of its divisors is an integer number (27936480).

Almost surely, 2^216324293 is an apocalyptic number.

It is an amenable number.

216324293 is a deficient number, since it is larger than the sum of its proper divisors (7167547).

216324293 is a wasteful number, since it uses less digits than its factorization.

216324293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5947.

The product of its digits is 15552, while the sum is 32.

The square root of 216324293 is about 14707.9669907163. The cubic root of 216324293 is about 600.3001211501.

The spelling of 216324293 in words is "two hundred sixteen million, three hundred twenty-four thousand, two hundred ninety-three".