219996289 has 8 divisors (see below), whose sum is σ = 221107040. Its totient is φ = 218889216.

The previous prime is 219996263. The next prime is 219996313. The reversal of 219996289 is 982699912.

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 219996289 - 2⁹ = 219995777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (219996239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285697 + ... + 286465.

It is an arithmetic number, because the mean of its divisors is an integer number (27638380).

Almost surely, 2^219996289 is an apocalyptic number.

It is an amenable number.

219996289 is a deficient number, since it is larger than the sum of its proper divisors (1110751).

219996289 is an equidigital number, since it uses as much as digits as its factorization.

219996289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839.

The product of its digits is 1259712, while the sum is 55.

The square root of 219996289 is about 14832.2718758793. The cubic root of 219996289 is about 603.6776793266.

The spelling of 219996289 in words is "two hundred nineteen million, nine hundred ninety-six thousand, two hundred eighty-nine".