243984713 has 16 divisors (see below), whose sum is σ = 292052736. Its totient is φ = 199288320.

The previous prime is 243984691. The next prime is 243984733. The reversal of 243984713 is 317489342.

243984713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-243984713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243984733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42545 + ... + 47937.

It is an arithmetic number, because the mean of its divisors is an integer number (18253296).

Almost surely, 2^243984713 is an apocalyptic number.

243984713 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

243984713 is a deficient number, since it is larger than the sum of its proper divisors (48068023).

243984713 is a wasteful number, since it uses less digits than its factorization.

243984713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5704.

The product of its digits is 145152, while the sum is 41.

The square root of 243984713 is about 15620.0100192029. The cubic root of 243984713 is about 624.8669267618.

The spelling of 243984713 in words is "two hundred forty-three million, nine hundred eighty-four thousand, seven hundred thirteen".