204226663 has 4 divisors (see below), whose sum is σ = 204422400. Its totient is φ = 204030928.

The previous prime is 204226621. The next prime is 204226681. The reversal of 204226663 is 366622402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204226663 - 2¹³ = 204218471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204226063) 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 in 3 ways as a sum of consecutive naturals, for example, 96295 + ... + 98392.

It is an arithmetic number, because the mean of its divisors is an integer number (51105600).

Almost surely, 2^204226663 is an apocalyptic number.

204226663 is a deficient number, since it is larger than the sum of its proper divisors (195737).

204226663 is a wasteful number, since it uses less digits than its factorization.

204226663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195736.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 204226663 is about 14290.7894463532. The cubic root of 204226663 is about 588.8944758077.

The spelling of 204226663 in words is "two hundred four million, two hundred twenty-six thousand, six hundred sixty-three".