229807709 has 2 divisors, whose sum is σ = 229807710. Its totient is φ = 229807708.

The previous prime is 229807663. The next prime is 229807733. The reversal of 229807709 is 907708922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180499225 + 49308484 = 13435^2 + 7022^2 .

It is a cyclic number.

It is not a de Polignac number, because 229807709 - 2¹⁶ = 229742173 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 229807709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229807909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114903854 + 114903855.

It is an arithmetic number, because the mean of its divisors is an integer number (114903855).

Almost surely, 2^229807709 is an apocalyptic number.

It is an amenable number.

229807709 is a deficient number, since it is larger than the sum of its proper divisors (1).

229807709 is an equidigital number, since it uses as much as digits as its factorization.

229807709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 229807709 is about 15159.4099159565. The cubic root of 229807709 is about 612.5217731535.

The spelling of 229807709 in words is "two hundred twenty-nine million, eight hundred seven thousand, seven hundred nine".