243933 has 8 divisors (see below), whose sum is σ = 344448. Its totient is φ = 153024.

The previous prime is 243931. The next prime is 243953. The reversal of 243933 is 339342.

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

It is not a de Polignac number, because 243933 - 2¹ = 243931 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243931) 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, 2341 + ... + 2442.

It is an arithmetic number, because the mean of its divisors is an integer number (43056).

2²⁴³⁹³³ is an apocalyptic number.

It is an amenable number.

243933 is a deficient number, since it is larger than the sum of its proper divisors (100515).

243933 is a wasteful number, since it uses less digits than its factorization.

243933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4803.

The product of its digits is 1944, while the sum is 24.

The square root of 243933 is about 493.8957379853. The cubic root of 243933 is about 62.4822776418.

It can be divided in two parts, 243 and 933, that added together give a triangular number (1176 = T₄₈).

The spelling of 243933 in words is "two hundred forty-three thousand, nine hundred thirty-three".