204349793 has 2 divisors, whose sum is σ = 204349794. Its totient is φ = 204349792.

The previous prime is 204349729. The next prime is 204349813. The reversal of 204349793 is 397943402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104509729 + 99840064 = 10223^2 + 9992^2 .

It is a cyclic number.

It is not a de Polignac number, because 204349793 - 2⁶ = 204349729 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 204349793.

It is not a weakly prime, because it can be changed into another prime (204349993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102174896 + 102174897.

It is an arithmetic number, because the mean of its divisors is an integer number (102174897).

Almost surely, 2^204349793 is an apocalyptic number.

It is an amenable number.

204349793 is a deficient number, since it is larger than the sum of its proper divisors (1).

204349793 is an equidigital number, since it uses as much as digits as its factorization.

204349793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 204349793 is about 14295.0968167410. The cubic root of 204349793 is about 589.0128018679.

The spelling of 204349793 in words is "two hundred four million, three hundred forty-nine thousand, seven hundred ninety-three".