243243367 has 4 divisors (see below), whose sum is σ = 244141216. Its totient is φ = 242345520.

The previous prime is 243243359. The next prime is 243243401. The reversal of 243243367 is 763342342.

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 243243367 - 2³ = 243243359 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 (243243317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448518 + ... + 449059.

It is an arithmetic number, because the mean of its divisors is an integer number (61035304).

Almost surely, 2^243243367 is an apocalyptic number.

243243367 is a deficient number, since it is larger than the sum of its proper divisors (897849).

243243367 is an equidigital number, since it uses as much as digits as its factorization.

243243367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897848.

The product of its digits is 72576, while the sum is 34.

The square root of 243243367 is about 15596.2613148152. The cubic root of 243243367 is about 624.2333999434.

The spelling of 243243367 in words is "two hundred forty-three million, two hundred forty-three thousand, three hundred sixty-seven".