229720307 has 2 divisors, whose sum is σ = 229720308. Its totient is φ = 229720306.

The previous prime is 229720277. The next prime is 229720363. The reversal of 229720307 is 703027922.

229720307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 229720307 - 2¹² = 229716211 is a prime.

It is not a weakly prime, because it can be changed into another prime (229720607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114860153 + 114860154.

It is an arithmetic number, because the mean of its divisors is an integer number (114860154).

Almost surely, 2^229720307 is an apocalyptic number.

229720307 is a deficient number, since it is larger than the sum of its proper divisors (1).

229720307 is an equidigital number, since it uses as much as digits as its factorization.

229720307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 229720307 is about 15156.5268778833. The cubic root of 229720307 is about 612.4441105188. Note that the first 3 decimals are identical.

The spelling of 229720307 in words is "two hundred twenty-nine million, seven hundred twenty thousand, three hundred seven".