206797243 has 2 divisors, whose sum is σ = 206797244. Its totient is φ = 206797242.

The previous prime is 206797193. The next prime is 206797267. The reversal of 206797243 is 342797602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206797243 - 2¹⁷ = 206666171 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206797196 and 206797205.

It is not a weakly prime, because it can be changed into another prime (206797343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103398621 + 103398622.

It is an arithmetic number, because the mean of its divisors is an integer number (103398622).

Almost surely, 2^206797243 is an apocalyptic number.

206797243 is a deficient number, since it is larger than the sum of its proper divisors (1).

206797243 is an equidigital number, since it uses as much as digits as its factorization.

206797243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 206797243 is about 14380.4465507855. The cubic root of 206797243 is about 591.3549659213.

It can be divided in two parts, 206 and 797243, that added together give a square (797449 = 893²).

The spelling of 206797243 in words is "two hundred six million, seven hundred ninety-seven thousand, two hundred forty-three".