204744497 has 2 divisors, whose sum is σ = 204744498. Its totient is φ = 204744496.

The previous prime is 204744493. The next prime is 204744499. The reversal of 204744497 is 794447402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116553616 + 88190881 = 10796^2 + 9391^2 .

It is a cyclic number.

It is not a de Polignac number, because 204744497 - 2² = 204744493 is a prime.

Together with 204744499, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (204744493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102372248 + 102372249.

It is an arithmetic number, because the mean of its divisors is an integer number (102372249).

Almost surely, 2^204744497 is an apocalyptic number.

It is an amenable number.

204744497 is a deficient number, since it is larger than the sum of its proper divisors (1).

204744497 is an equidigital number, since it uses as much as digits as its factorization.

204744497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 41.

The square root of 204744497 is about 14308.8957295803. The cubic root of 204744497 is about 589.3917863255.

The spelling of 204744497 in words is "two hundred four million, seven hundred forty-four thousand, four hundred ninety-seven".