229989 has 8 divisors (see below), whose sum is σ = 316672. Its totient is φ = 148320.

The previous prime is 229981. The next prime is 230003. The reversal of 229989 is 989922.

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

It is not a de Polignac number, because 229989 - 2³ = 229981 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 (229981) 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, 1144 + ... + 1329.

It is an arithmetic number, because the mean of its divisors is an integer number (39584).

2²²⁹⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

229989 is a deficient number, since it is larger than the sum of its proper divisors (86683).

229989 is a wasteful number, since it uses less digits than its factorization.

229989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2507.

The product of its digits is 23328, while the sum is 39.

The square root of 229989 is about 479.5716839014. The cubic root of 229989 is about 61.2682799804.

It can be divided in two parts, 22 and 9989, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 229989 in words is "two hundred twenty-nine thousand, nine hundred eighty-nine".