206844853 has 2 divisors, whose sum is σ = 206844854. Its totient is φ = 206844852.

The previous prime is 206844829. The next prime is 206844857. The reversal of 206844853 is 358448602.

206844853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199996164 + 6848689 = 14142^2 + 2617^2 .

It is a cyclic number.

It is not a de Polignac number, because 206844853 - 2¹³ = 206836661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206844857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103422426 + 103422427.

It is an arithmetic number, because the mean of its divisors is an integer number (103422427).

Almost surely, 2^206844853 is an apocalyptic number.

It is an amenable number.

206844853 is a deficient number, since it is larger than the sum of its proper divisors (1).

206844853 is an equidigital number, since it uses as much as digits as its factorization.

206844853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 184320, while the sum is 40.

The square root of 206844853 is about 14382.1018283142. The cubic root of 206844853 is about 591.4003441046.

The spelling of 206844853 in words is "two hundred six million, eight hundred forty-four thousand, eight hundred fifty-three".