229839 has 8 divisors (see below), whose sum is σ = 319872. Its totient is φ = 146520.

The previous prime is 229837. The next prime is 229841. The reversal of 229839 is 938922.

It is an interprime number because it is at equal distance from previous prime (229837) and next prime (229841).

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

It is not a de Polignac number, because 229839 - 2¹ = 229837 is a prime.

It is an Ulam number.

229839 is a lucky 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 (229837) 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, 1597 + ... + 1734.

It is an arithmetic number, because the mean of its divisors is an integer number (39984).

2²²⁹⁸³⁹ is an apocalyptic number.

229839 is a deficient number, since it is larger than the sum of its proper divisors (90033).

229839 is a wasteful number, since it uses less digits than its factorization.

229839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3357.

The product of its digits is 7776, while the sum is 33.

The square root of 229839 is about 479.4152688432. The cubic root of 229839 is about 61.2549572553.

The spelling of 229839 in words is "two hundred twenty-nine thousand, eight hundred thirty-nine".