229809773 has 2 divisors, whose sum is σ = 229809774. Its totient is φ = 229809772.

The previous prime is 229809737. The next prime is 229809787. The reversal of 229809773 is 377908922.

Together with previous prime (229809737) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209757289 + 20052484 = 14483^2 + 4478^2 .

It is a cyclic number.

It is not a de Polignac number, because 229809773 - 2¹⁸ = 229547629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229809373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114904886 + 114904887.

It is an arithmetic number, because the mean of its divisors is an integer number (114904887).

Almost surely, 2^229809773 is an apocalyptic number.

It is an amenable number.

229809773 is a deficient number, since it is larger than the sum of its proper divisors (1).

229809773 is an equidigital number, since it uses as much as digits as its factorization.

229809773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 229809773 is about 15159.4779923321. The cubic root of 229809773 is about 612.5236069202.

The spelling of 229809773 in words is "two hundred twenty-nine million, eight hundred nine thousand, seven hundred seventy-three".