204906211 has 2 divisors, whose sum is σ = 204906212. Its totient is φ = 204906210.

The previous prime is 204906197. The next prime is 204906227. The reversal of 204906211 is 112609402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204906211 - 2¹¹ = 204904163 is a prime.

It is equal to p_11335570 and since 204906211 and 11335570 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 (204906271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102453105 + 102453106.

It is an arithmetic number, because the mean of its divisors is an integer number (102453106).

Almost surely, 2^204906211 is an apocalyptic number.

204906211 is a deficient number, since it is larger than the sum of its proper divisors (1).

204906211 is an equidigital number, since it uses as much as digits as its factorization.

204906211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 204906211 is about 14314.5454346270. The cubic root of 204906211 is about 589.5469192220.

The spelling of 204906211 in words is "two hundred four million, nine hundred six thousand, two hundred eleven".