204820933 has 2 divisors, whose sum is σ = 204820934. Its totient is φ = 204820932.

The previous prime is 204820907. The next prime is 204820961. The reversal of 204820933 is 339028402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204432804 + 388129 = 14298^2 + 623^2 .

It is a cyclic number.

It is not a de Polignac number, because 204820933 - 2¹⁷ = 204689861 is a prime.

It is a super-2 number, since 2×204820933² = 83903229189980978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204820895 and 204820904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204820433) 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, 102410466 + 102410467.

It is an arithmetic number, because the mean of its divisors is an integer number (102410467).

Almost surely, 2^204820933 is an apocalyptic number.

It is an amenable number.

204820933 is a deficient number, since it is larger than the sum of its proper divisors (1).

204820933 is an equidigital number, since it uses as much as digits as its factorization.

204820933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 204820933 is about 14311.5664062324. The cubic root of 204820933 is about 589.4651218669.

The spelling of 204820933 in words is "two hundred four million, eight hundred twenty thousand, nine hundred thirty-three".