229947 has 4 divisors (see below), whose sum is σ = 306600. Its totient is φ = 153296.

The previous prime is 229939. The next prime is 229949. The reversal of 229947 is 749922.

229947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 229947 - 2³ = 229939 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (229949) 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, 38322 + ... + 38327.

It is an arithmetic number, because the mean of its divisors is an integer number (76650).

2²²⁹⁹⁴⁷ is an apocalyptic number.

229947 is a deficient number, since it is larger than the sum of its proper divisors (76653).

229947 is an equidigital number, since it uses as much as digits as its factorization.

229947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76652.

The product of its digits is 9072, while the sum is 33.

The square root of 229947 is about 479.5278928279. The cubic root of 229947 is about 61.2645502015.

It can be divided in two parts, 2299 and 47, that added together give a triangular number (2346 = T₆₈).

The spelling of 229947 in words is "two hundred twenty-nine thousand, nine hundred forty-seven".