243622793 has 2 divisors, whose sum is σ = 243622794. Its totient is φ = 243622792.

The previous prime is 243622777. The next prime is 243622829. The reversal of 243622793 is 397226342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190798969 + 52823824 = 13813^2 + 7268^2 .

It is a cyclic number.

It is not a de Polignac number, because 243622793 - 2⁴ = 243622777 is a prime.

It is not a weakly prime, because it can be changed into another prime (243622723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121811396 + 121811397.

It is an arithmetic number, because the mean of its divisors is an integer number (121811397).

Almost surely, 2^243622793 is an apocalyptic number.

It is an amenable number.

243622793 is a deficient number, since it is larger than the sum of its proper divisors (1).

243622793 is an equidigital number, since it uses as much as digits as its factorization.

243622793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 38.

The square root of 243622793 is about 15608.4205799306. The cubic root of 243622793 is about 624.5578039073.

The spelling of 243622793 in words is "two hundred forty-three million, six hundred twenty-two thousand, seven hundred ninety-three".