204085907 has 2 divisors, whose sum is σ = 204085908. Its totient is φ = 204085906.

The previous prime is 204085873. The next prime is 204085913. The reversal of 204085907 is 709580402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204085907 - 2¹⁰ = 204084883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (204085957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102042953 + 102042954.

It is an arithmetic number, because the mean of its divisors is an integer number (102042954).

Almost surely, 2^204085907 is an apocalyptic number.

204085907 is a deficient number, since it is larger than the sum of its proper divisors (1).

204085907 is an equidigital number, since it uses as much as digits as its factorization.

204085907 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 35.

The square root of 204085907 is about 14285.8638870738. The cubic root of 204085907 is about 588.7591531552.

The spelling of 204085907 in words is "two hundred four million, eighty-five thousand, nine hundred seven".