204635047 has 2 divisors, whose sum is σ = 204635048. Its totient is φ = 204635046.

The previous prime is 204634981. The next prime is 204635051. The reversal of 204635047 is 740536402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204635047 - 2⁷ = 204634919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204635077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102317523 + 102317524.

It is an arithmetic number, because the mean of its divisors is an integer number (102317524).

Almost surely, 2^204635047 is an apocalyptic number.

204635047 is a deficient number, since it is larger than the sum of its proper divisors (1).

204635047 is an equidigital number, since it uses as much as digits as its factorization.

204635047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 204635047 is about 14305.0706744147. The cubic root of 204635047 is about 589.2867441385.

The spelling of 204635047 in words is "two hundred four million, six hundred thirty-five thousand, forty-seven".