204425747 has 8 divisors (see below), whose sum is σ = 206639856. Its totient is φ = 202217472.

The previous prime is 204425719. The next prime is 204425759. The reversal of 204425747 is 747524402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204425747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204425707) 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 7 ways as a sum of consecutive naturals, for example, 122543 + ... + 124199.

It is an arithmetic number, because the mean of its divisors is an integer number (25829982).

Almost surely, 2^204425747 is an apocalyptic number.

204425747 is a deficient number, since it is larger than the sum of its proper divisors (2214109).

204425747 is a wasteful number, since it uses less digits than its factorization.

204425747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917.

The product of its (nonzero) digits is 62720, while the sum is 35.

The square root of 204425747 is about 14297.7532151034. The cubic root of 204425747 is about 589.0857688069.

The spelling of 204425747 in words is "two hundred four million, four hundred twenty-five thousand, seven hundred forty-seven".