229563823 has 2 divisors, whose sum is σ = 229563824. Its totient is φ = 229563822.

The previous prime is 229563811. The next prime is 229563857. The reversal of 229563823 is 328365922.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 229563823 - 2⁵ = 229563791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229563863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114781911 + 114781912.

It is an arithmetic number, because the mean of its divisors is an integer number (114781912).

Almost surely, 2^229563823 is an apocalyptic number.

229563823 is a deficient number, since it is larger than the sum of its proper divisors (1).

229563823 is an equidigital number, since it uses as much as digits as its factorization.

229563823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 40.

The square root of 229563823 is about 15151.3637340010. The cubic root of 229563823 is about 612.3050145967.

The spelling of 229563823 in words is "two hundred twenty-nine million, five hundred sixty-three thousand, eight hundred twenty-three".