229645823 has 8 divisors (see below), whose sum is σ = 261415296. Its totient is φ = 199691800.

The previous prime is 229645789. The next prime is 229645831. The reversal of 229645823 is 328546922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 229645823 - 2⁸ = 229645567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229645853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453593 + ... + 454098.

It is an arithmetic number, because the mean of its divisors is an integer number (32676912).

Almost surely, 2^229645823 is an apocalyptic number.

229645823 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

229645823 is a deficient number, since it is larger than the sum of its proper divisors (31769473).

229645823 is a wasteful number, since it uses less digits than its factorization.

229645823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907725.

The product of its digits is 207360, while the sum is 41.

The square root of 229645823 is about 15154.0695194393. The cubic root of 229645823 is about 612.3779108594.

The spelling of 229645823 in words is "two hundred twenty-nine million, six hundred forty-five thousand, eight hundred twenty-three".