204879673 has 2 divisors, whose sum is σ = 204879674. Its totient is φ = 204879672.

The previous prime is 204879671. The next prime is 204879707. The reversal of 204879673 is 376978402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204289849 + 589824 = 14293^2 + 768^2 .

It is a cyclic number.

It is not a de Polignac number, because 204879673 - 2¹ = 204879671 is a prime.

Together with 204879671, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (204879671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102439836 + 102439837.

It is an arithmetic number, because the mean of its divisors is an integer number (102439837).

Almost surely, 2^204879673 is an apocalyptic number.

It is an amenable number.

204879673 is a deficient number, since it is larger than the sum of its proper divisors (1).

204879673 is an equidigital number, since it uses as much as digits as its factorization.

204879673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 204879673 is about 14313.6184453827. The cubic root of 204879673 is about 589.5214668105.

The spelling of 204879673 in words is "two hundred four million, eight hundred seventy-nine thousand, six hundred seventy-three".