206286047 has 8 divisors (see below), whose sum is σ = 230528592. Its totient is φ = 182958400.

The previous prime is 206286043. The next prime is 206286071. The reversal of 206286047 is 740682602.

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

It is not a de Polignac number, because 206286047 - 2² = 206286043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206285998 and 206286016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206286043) 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 7 ways as a sum of consecutive naturals, for example, 228248 + ... + 229149.

It is an arithmetic number, because the mean of its divisors is an integer number (28816074).

Almost surely, 2^206286047 is an apocalyptic number.

206286047 is a deficient number, since it is larger than the sum of its proper divisors (24242545).

206286047 is a wasteful number, since it uses less digits than its factorization.

206286047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457449.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 206286047 is about 14362.6615569678. The cubic root of 206286047 is about 590.8672938390.

The spelling of 206286047 in words is "two hundred six million, two hundred eighty-six thousand, forty-seven".