229682809 has 2 divisors, whose sum is σ = 229682810. Its totient is φ = 229682808.

The previous prime is 229682797. The next prime is 229682819. The reversal of 229682809 is 908286922.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208889209 + 20793600 = 14453^2 + 4560^2 .

It is a cyclic number.

It is not a de Polignac number, because 229682809 - 2⁵ = 229682777 is a prime.

It is not a weakly prime, because it can be changed into another prime (229682819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114841404 + 114841405.

It is an arithmetic number, because the mean of its divisors is an integer number (114841405).

Almost surely, 2^229682809 is an apocalyptic number.

It is an amenable number.

229682809 is a deficient number, since it is larger than the sum of its proper divisors (1).

229682809 is an equidigital number, since it uses as much as digits as its factorization.

229682809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 229682809 is about 15155.2898025739. The cubic root of 229682809 is about 612.4107849511.

The spelling of 229682809 in words is "two hundred twenty-nine million, six hundred eighty-two thousand, eight hundred nine".