206117027 has 4 divisors (see below), whose sum is σ = 218241576. Its totient is φ = 193992480.

The previous prime is 206117011. The next prime is 206117039. The reversal of 206117027 is 720711602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 206117027 - 2⁴ = 206117011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206116987 and 206117005.

It is not an unprimeable number, because it can be changed into a prime (206117227) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6062249 + ... + 6062282.

It is an arithmetic number, because the mean of its divisors is an integer number (54560394).

Almost surely, 2^206117027 is an apocalyptic number.

206117027 is a deficient number, since it is larger than the sum of its proper divisors (12124549).

206117027 is a wasteful number, since it uses less digits than its factorization.

206117027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12124548.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 206117027 is about 14356.7763442912. The cubic root of 206117027 is about 590.7058744903.

Adding to 206117027 its reverse (720711602), we get a palindrome (926828629).

The spelling of 206117027 in words is "two hundred six million, one hundred seventeen thousand, twenty-seven".