204829947 has 18 divisors (see below), whose sum is σ = 344170788. Its totient is φ = 117045432.

The previous prime is 204829943. The next prime is 204829951. The reversal of 204829947 is 749928402.

It is an interprime number because it is at equal distance from previous prime (204829943) and next prime (204829951).

It is not a de Polignac number, because 204829947 - 2² = 204829943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204829943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 231793 + ... + 232674.

Almost surely, 2^204829947 is an apocalyptic number.

204829947 is a deficient number, since it is larger than the sum of its proper divisors (139340841).

204829947 is a wasteful number, since it uses less digits than its factorization.

204829947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464487 (or 464477 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 204829947 is about 14311.8813228730. The cubic root of 204829947 is about 589.4737690310.

The spelling of 204829947 in words is "two hundred four million, eight hundred twenty-nine thousand, nine hundred forty-seven".