204030647 has 2 divisors, whose sum is σ = 204030648. Its totient is φ = 204030646.

The previous prime is 204030643. The next prime is 204030709. The reversal of 204030647 is 746030402.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204030647 - 2² = 204030643 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204030643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102015323 + 102015324.

It is an arithmetic number, because the mean of its divisors is an integer number (102015324).

Almost surely, 2^204030647 is an apocalyptic number.

204030647 is a deficient number, since it is larger than the sum of its proper divisors (1).

204030647 is an equidigital number, since it uses as much as digits as its factorization.

204030647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 204030647 is about 14283.9296763881. The cubic root of 204030647 is about 588.7060092476.

The spelling of 204030647 in words is "two hundred four million, thirty thousand, six hundred forty-seven".