216544089 has 8 divisors (see below), whose sum is σ = 289198912. Its totient is φ = 144126000.

The previous prime is 216544049. The next prime is 216544093. The reversal of 216544089 is 980445612.

216544089 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 not a de Polignac number, because 216544089 - 2⁹ = 216543577 is a prime.

It is a super-3 number, since 3×216544089³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216544019) 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, 57037 + ... + 60714.

It is an arithmetic number, because the mean of its divisors is an integer number (36149864).

Almost surely, 2^216544089 is an apocalyptic number.

It is an amenable number.

216544089 is a deficient number, since it is larger than the sum of its proper divisors (72654823).

216544089 is a wasteful number, since it uses less digits than its factorization.

216544089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118367.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 216544089 is about 14715.4370985031. The cubic root of 216544089 is about 600.5033637013.

The spelling of 216544089 in words is "two hundred sixteen million, five hundred forty-four thousand, eighty-nine".