206710243 has 8 divisors (see below), whose sum is σ = 210330000. Its totient is φ = 203119488.

The previous prime is 206710241. The next prime is 206710247. The reversal of 206710243 is 342017602.

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

It is a cyclic number.

It is not a de Polignac number, because 206710243 - 2¹ = 206710241 is a prime.

It is a super-2 number, since 2×206710243² = 85458249122238098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206710241) 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, 7383 + ... + 21631.

It is an arithmetic number, because the mean of its divisors is an integer number (26291250).

Almost surely, 2^206710243 is an apocalyptic number.

206710243 is a deficient number, since it is larger than the sum of its proper divisors (3619757).

206710243 is a wasteful number, since it uses less digits than its factorization.

206710243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14501.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 206710243 is about 14377.4212917338. The cubic root of 206710243 is about 591.2720262300.

Adding to 206710243 its reverse (342017602), we get a palindrome (548727845).

The spelling of 206710243 in words is "two hundred six million, seven hundred ten thousand, two hundred forty-three".