219829 has 2 divisors, whose sum is σ = 219830. Its totient is φ = 219828.

The previous prime is 219823. The next prime is 219839. The reversal of 219829 is 928912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180625 + 39204 = 425^2 + 198^2 .

It is a cyclic number.

It is not a de Polignac number, because 219829 - 2⁵ = 219797 is a prime.

It is a Chen prime.

219829 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 219829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (219823) 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 as a sum of consecutive naturals, namely, 109914 + 109915.

It is an arithmetic number, because the mean of its divisors is an integer number (109915).

2²¹⁹⁸²⁹ is an apocalyptic number.

It is an amenable number.

219829 is a deficient number, since it is larger than the sum of its proper divisors (1).

219829 is an equidigital number, since it uses as much as digits as its factorization.

219829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 31.

The square root of 219829 is about 468.8592539345. The cubic root of 219829 is about 60.3524624860.

The spelling of 219829 in words is "two hundred nineteen thousand, eight hundred twenty-nine".