229985867 has 2 divisors, whose sum is σ = 229985868. Its totient is φ = 229985866.

The previous prime is 229985839. The next prime is 229985881. The reversal of 229985867 is 768589922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 229985867 - 2⁸ = 229985611 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (229985837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114992933 + 114992934.

It is an arithmetic number, because the mean of its divisors is an integer number (114992934).

Almost surely, 2^229985867 is an apocalyptic number.

229985867 is a deficient number, since it is larger than the sum of its proper divisors (1).

229985867 is an equidigital number, since it uses as much as digits as its factorization.

229985867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 56.

The square root of 229985867 is about 15165.2849297334. The cubic root of 229985867 is about 612.6800177237.

The spelling of 229985867 in words is "two hundred twenty-nine million, nine hundred eighty-five thousand, eight hundred sixty-seven".