216026589 has 8 divisors (see below), whose sum is σ = 288796960. Its totient is φ = 143636976.

The previous prime is 216026579. The next prime is 216026611. The reversal of 216026589 is 985620612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 216026589 - 2²⁰ = 214978013 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 (216026519) 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, 93862 + ... + 96135.

It is an arithmetic number, because the mean of its divisors is an integer number (36099620).

Almost surely, 2^216026589 is an apocalyptic number.

It is an amenable number.

216026589 is a deficient number, since it is larger than the sum of its proper divisors (72770371).

216026589 is a wasteful number, since it uses less digits than its factorization.

216026589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190379.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 216026589 is about 14697.8430050127. The cubic root of 216026589 is about 600.0246184343.

The spelling of 216026589 in words is "two hundred sixteen million, twenty-six thousand, five hundred eighty-nine".