229728263 has 2 divisors, whose sum is σ = 229728264. Its totient is φ = 229728262.

The previous prime is 229728253. The next prime is 229728271. The reversal of 229728263 is 362827922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 229728263 - 2⁶ = 229728199 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 229728263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229728223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114864131 + 114864132.

It is an arithmetic number, because the mean of its divisors is an integer number (114864132).

Almost surely, 2^229728263 is an apocalyptic number.

229728263 is a deficient number, since it is larger than the sum of its proper divisors (1).

229728263 is an equidigital number, since it uses as much as digits as its factorization.

229728263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The square root of 229728263 is about 15156.7893367956. The cubic root of 229728263 is about 612.4511807820.

The spelling of 229728263 in words is "two hundred twenty-nine million, seven hundred twenty-eight thousand, two hundred sixty-three".