229791 has 4 divisors (see below), whose sum is σ = 306392. Its totient is φ = 153192.

The previous prime is 229781. The next prime is 229799. The reversal of 229791 is 197922.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 229791 - 2⁵ = 229759 is a prime.

It is a D-number.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38296 + ... + 38301.

It is an arithmetic number, because the mean of its divisors is an integer number (76598).

2²²⁹⁷⁹¹ is an apocalyptic number.

229791 is a deficient number, since it is larger than the sum of its proper divisors (76601).

229791 is an equidigital number, since it uses as much as digits as its factorization.

229791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76600.

The product of its digits is 2268, while the sum is 30.

The square root of 229791 is about 479.3652052454. The cubic root of 229791 is about 61.2506927591.

The spelling of 229791 in words is "two hundred twenty-nine thousand, seven hundred ninety-one".