229812347 has 2 divisors, whose sum is σ = 229812348. Its totient is φ = 229812346.

The previous prime is 229812313. The next prime is 229812367. The reversal of 229812347 is 743218922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 229812347 - 2⁶ = 229812283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 229812347.

It is not a weakly prime, because it can be changed into another prime (229812367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114906173 + 114906174.

It is an arithmetic number, because the mean of its divisors is an integer number (114906174).

Almost surely, 2^229812347 is an apocalyptic number.

229812347 is a deficient number, since it is larger than the sum of its proper divisors (1).

229812347 is an equidigital number, since it uses as much as digits as its factorization.

229812347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 38.

The square root of 229812347 is about 15159.5628894767. The cubic root of 229812347 is about 612.5258937824.

The spelling of 229812347 in words is "two hundred twenty-nine million, eight hundred twelve thousand, three hundred forty-seven".