243967713 has 12 divisors (see below), whose sum is σ = 354992688. Its totient is φ = 147804840.

The previous prime is 243967699. The next prime is 243967723. The reversal of 243967713 is 317769342.

243967713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243967713 - 2¹⁴ = 243951329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243967723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88368 + ... + 91086.

It is an arithmetic number, because the mean of its divisors is an integer number (29582724).

Almost surely, 2^243967713 is an apocalyptic number.

It is an amenable number.

243967713 is a deficient number, since it is larger than the sum of its proper divisors (111024975).

243967713 is an frugal number, since it uses more digits than its factorization.

243967713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5452 (or 2733 counting only the distinct ones).

The product of its digits is 190512, while the sum is 42.

The square root of 243967713 is about 15619.4658359369. The cubic root of 243967713 is about 624.8524135786.

The spelling of 243967713 in words is "two hundred forty-three million, nine hundred sixty-seven thousand, seven hundred thirteen".