243792853 has 2 divisors, whose sum is σ = 243792854. Its totient is φ = 243792852.

The previous prime is 243792851. The next prime is 243792911. The reversal of 243792853 is 358297342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174187204 + 69605649 = 13198^2 + 8343^2 .

It is a cyclic number.

It is not a de Polignac number, because 243792853 - 2¹ = 243792851 is a prime.

Together with 243792851, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243792851) 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 as a sum of consecutive naturals, namely, 121896426 + 121896427.

It is an arithmetic number, because the mean of its divisors is an integer number (121896427).

Almost surely, 2^243792853 is an apocalyptic number.

It is an amenable number.

243792853 is a deficient number, since it is larger than the sum of its proper divisors (1).

243792853 is an equidigital number, since it uses as much as digits as its factorization.

243792853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 43.

The square root of 243792853 is about 15613.8673300371. The cubic root of 243792853 is about 624.7030935368.

The spelling of 243792853 in words is "two hundred forty-three million, seven hundred ninety-two thousand, eight hundred fifty-three".