216043339 has 4 divisors (see below), whose sum is σ = 216301680. Its totient is φ = 215785000.

The previous prime is 216043337. The next prime is 216043351. The reversal of 216043339 is 933340612.

216043339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 216043339 - 2¹ = 216043337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 216043339.

It is not an unprimeable number, because it can be changed into a prime (216043337) 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, 127912 + ... + 129589.

It is an arithmetic number, because the mean of its divisors is an integer number (54075420).

Almost surely, 2^216043339 is an apocalyptic number.

216043339 is a deficient number, since it is larger than the sum of its proper divisors (258341).

216043339 is an equidigital number, since it uses as much as digits as its factorization.

216043339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258340.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 216043339 is about 14698.4128054698. The cubic root of 216043339 is about 600.0401260201.

The spelling of 216043339 in words is "two hundred sixteen million, forty-three thousand, three hundred thirty-nine".