229839791 has 2 divisors, whose sum is σ = 229839792. Its totient is φ = 229839790.

The previous prime is 229839769. The next prime is 229839793. The reversal of 229839791 is 197938922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 229839791 - 2¹⁰ = 229838767 is a prime.

Together with 229839793, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229839793) 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, 114919895 + 114919896.

It is an arithmetic number, because the mean of its divisors is an integer number (114919896).

Almost surely, 2^229839791 is an apocalyptic number.

229839791 is a deficient number, since it is larger than the sum of its proper divisors (1).

229839791 is an equidigital number, since it uses as much as digits as its factorization.

229839791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 50.

The square root of 229839791 is about 15160.4680336723. The cubic root of 229839791 is about 612.5502752568.

The spelling of 229839791 in words is "two hundred twenty-nine million, eight hundred thirty-nine thousand, seven hundred ninety-one".