204224693 has 4 divisors (see below), whose sum is σ = 204305580. Its totient is φ = 204143808.

The previous prime is 204224663. The next prime is 204224707. The reversal of 204224693 is 396422402.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37246609 + 166978084 = 6103^2 + 12922^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204224693 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 (204224633) 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 in 3 ways as a sum of consecutive naturals, for example, 36530 + ... + 41747.

It is an arithmetic number, because the mean of its divisors is an integer number (51076395).

Almost surely, 2^204224693 is an apocalyptic number.

It is an amenable number.

204224693 is a deficient number, since it is larger than the sum of its proper divisors (80887).

204224693 is an equidigital number, since it uses as much as digits as its factorization.

204224693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80886.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 204224693 is about 14290.7205206735. The cubic root of 204224693 is about 588.8925822811.

The spelling of 204224693 in words is "two hundred four million, two hundred twenty-four thousand, six hundred ninety-three".