206766047 has 2 divisors, whose sum is σ = 206766048. Its totient is φ = 206766046.

The previous prime is 206766041. The next prime is 206766061. The reversal of 206766047 is 740667602.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 206766047 - 2¹⁶ = 206700511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 206766047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206766041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103383023 + 103383024.

It is an arithmetic number, because the mean of its divisors is an integer number (103383024).

Almost surely, 2^206766047 is an apocalyptic number.

206766047 is a deficient number, since it is larger than the sum of its proper divisors (1).

206766047 is an equidigital number, since it uses as much as digits as its factorization.

206766047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 206766047 is about 14379.3618425854. The cubic root of 206766047 is about 591.3252285209.

The spelling of 206766047 in words is "two hundred six million, seven hundred sixty-six thousand, forty-seven".