204947856 has 45 divisors (see below), whose sum is σ = 574050529. Its totient is φ = 68258688.

The previous prime is 204947839. The next prime is 204947863. The reversal of 204947856 is 658749402.

It is a happy number.

The square root of 204947856 is 14316.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 105267600 + 99680256 = 10260^2 + 9984^2 .

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 171196 + ... + 172388.

Almost surely, 2^204947856 is an apocalyptic number.

204947856 is the 14316-th square number.

It is an amenable number.

204947856 is an abundant number, since it is smaller than the sum of its proper divisors (369102673).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204947856 is an equidigital number, since it uses as much as digits as its factorization.

204947856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400 (or 1198 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The cubic root of 204947856 is about 589.5868562225.

The spelling of 204947856 in words is "two hundred four million, nine hundred forty-seven thousand, eight hundred fifty-six".