229769 has 2 divisors, whose sum is σ = 229770. Its totient is φ = 229768.

The previous prime is 229763. The next prime is 229771. The reversal of 229769 is 967922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169744 + 60025 = 412^2 + 245^2 .

It is a cyclic number.

It is not a de Polignac number, because 229769 - 2⁴ = 229753 is a prime.

It is a super-2 number, since 2×229769² = 105587586722, which contains 22 as substring.

Together with 229771, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (229763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114884 + 114885.

It is an arithmetic number, because the mean of its divisors is an integer number (114885).

2²²⁹⁷⁶⁹ is an apocalyptic number.

It is an amenable number.

229769 is a deficient number, since it is larger than the sum of its proper divisors (1).

229769 is an equidigital number, since it uses as much as digits as its factorization.

229769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 35.

The square root of 229769 is about 479.3422576823. The cubic root of 229769 is about 61.2487379998.

The spelling of 229769 in words is "two hundred twenty-nine thousand, seven hundred sixty-nine".