229789873 has 2 divisors, whose sum is σ = 229789874. Its totient is φ = 229789872.

The previous prime is 229789811. The next prime is 229789891. The reversal of 229789873 is 378987922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 214681104 + 15108769 = 14652^2 + 3887^2 .

It is a cyclic number.

It is not a de Polignac number, because 229789873 - 2¹³ = 229781681 is a prime.

It is a super-2 number, since 2×229789873² = 105606771466712258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (229786873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114894936 + 114894937.

It is an arithmetic number, because the mean of its divisors is an integer number (114894937).

Almost surely, 2^229789873 is an apocalyptic number.

It is an amenable number.

229789873 is a deficient number, since it is larger than the sum of its proper divisors (1).

229789873 is an equidigital number, since it uses as much as digits as its factorization.

229789873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 55.

The square root of 229789873 is about 15158.8216230682. The cubic root of 229789873 is about 612.5059262511.

The spelling of 229789873 in words is "two hundred twenty-nine million, seven hundred eighty-nine thousand, eight hundred seventy-three".