204979211 has 2 divisors, whose sum is σ = 204979212. Its totient is φ = 204979210.

The previous prime is 204979199. The next prime is 204979241. The reversal of 204979211 is 112979402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204979211 - 2¹⁴ = 204962827 is a prime.

It is a Chen prime.

It is equal to p_11339378 and since 204979211 and 11339378 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 (204979241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102489605 + 102489606.

It is an arithmetic number, because the mean of its divisors is an integer number (102489606).

Almost surely, 2^204979211 is an apocalyptic number.

204979211 is a deficient number, since it is larger than the sum of its proper divisors (1).

204979211 is an equidigital number, since it uses as much as digits as its factorization.

204979211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 204979211 is about 14317.0950614990. The cubic root of 204979211 is about 589.6169216801.

The spelling of 204979211 in words is "two hundred four million, nine hundred seventy-nine thousand, two hundred eleven".