206326047 has 4 divisors (see below), whose sum is σ = 275101400. Its totient is φ = 137550696.

The previous prime is 206326037. The next prime is 206326051. The reversal of 206326047 is 740623602.

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

It is not a de Polignac number, because 206326047 - 2⁶ = 206325983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206326037) 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 3 ways as a sum of consecutive naturals, for example, 34387672 + ... + 34387677.

It is an arithmetic number, because the mean of its divisors is an integer number (68775350).

Almost surely, 2^206326047 is an apocalyptic number.

206326047 is a deficient number, since it is larger than the sum of its proper divisors (68775353).

206326047 is an equidigital number, since it uses as much as digits as its factorization.

206326047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68775352.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 206326047 is about 14364.0539890381. The cubic root of 206326047 is about 590.9054821777.

Adding to 206326047 its reverse (740623602), we get a palindrome (946949649).

The spelling of 206326047 in words is "two hundred six million, three hundred twenty-six thousand, forty-seven".