204953247 has 28 divisors (see below), whose sum is σ = 323484280. Its totient is φ = 129435408.

The previous prime is 204953213. The next prime is 204953261. The reversal of 204953247 is 742359402.

It is not a de Polignac number, because 204953247 - 2⁸ = 204952991 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 (204953447) 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 27 ways as a sum of consecutive naturals, for example, 6453 + ... + 21249.

It is an arithmetic number, because the mean of its divisors is an integer number (11553010).

Almost surely, 2^204953247 is an apocalyptic number.

204953247 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

204953247 is a deficient number, since it is larger than the sum of its proper divisors (118531033).

204953247 is an equidigital number, since it uses as much as digits as its factorization.

204953247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14834 (or 14819 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 204953247 is about 14316.1882845959. The cubic root of 204953247 is about 589.5920257242.

The spelling of 204953247 in words is "two hundred four million, nine hundred fifty-three thousand, two hundred forty-seven".