243827713 has 2 divisors, whose sum is σ = 243827714. Its totient is φ = 243827712.

The previous prime is 243827711. The next prime is 243827723. The reversal of 243827713 is 317728342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178169104 + 65658609 = 13348^2 + 8103^2 .

It is a cyclic number.

It is not a de Polignac number, because 243827713 - 2¹ = 243827711 is a prime.

Together with 243827711, it forms a pair of twin primes.

It is equal to p_13359682 and since 243827713 and 13359682 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (243827711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121913856 + 121913857.

It is an arithmetic number, because the mean of its divisors is an integer number (121913857).

Almost surely, 2^243827713 is an apocalyptic number.

It is an amenable number.

243827713 is a deficient number, since it is larger than the sum of its proper divisors (1).

243827713 is an equidigital number, since it uses as much as digits as its factorization.

243827713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 37.

The square root of 243827713 is about 15614.9836054989. The cubic root of 243827713 is about 624.7328676007.

The spelling of 243827713 in words is "two hundred forty-three million, eight hundred twenty-seven thousand, seven hundred thirteen".