205027947 has 18 divisors (see below), whose sum is σ = 298169508. Its totient is φ = 135759792.

The previous prime is 205027897. The next prime is 205027961. The reversal of 205027947 is 749720502.

It is not a de Polignac number, because 205027947 - 2¹⁰ = 205026923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205027967) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 348988 + ... + 349574.

Almost surely, 2^205027947 is an apocalyptic number.

205027947 is a deficient number, since it is larger than the sum of its proper divisors (93141561).

205027947 is an equidigital number, since it uses as much as digits as its factorization.

205027947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 205027947 is about 14318.7969815903. The cubic root of 205027947 is about 589.6636472204.

The spelling of 205027947 in words is "two hundred five million, twenty-seven thousand, nine hundred forty-seven".