204220463 has 2 divisors, whose sum is σ = 204220464. Its totient is φ = 204220462.

The previous prime is 204220411. The next prime is 204220477. The reversal of 204220463 is 364022402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204220463 - 2⁶ = 204220399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204220363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102110231 + 102110232.

It is an arithmetic number, because the mean of its divisors is an integer number (102110232).

Almost surely, 2^204220463 is an apocalyptic number.

204220463 is a deficient number, since it is larger than the sum of its proper divisors (1).

204220463 is an equidigital number, since it uses as much as digits as its factorization.

204220463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 204220463 is about 14290.5725217711. The cubic root of 204220463 is about 588.8885164443. Note that the first 3 decimals are identical.

Adding to 204220463 its reverse (364022402), we get a palindrome (568242865).

The spelling of 204220463 in words is "two hundred four million, two hundred twenty thousand, four hundred sixty-three".