206764073 has 2 divisors, whose sum is σ = 206764074. Its totient is φ = 206764072.

The previous prime is 206764037. The next prime is 206764091. The reversal of 206764073 is 370467602.

Together with previous prime (206764037) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182871529 + 23892544 = 13523^2 + 4888^2 .

It is a cyclic number.

It is not a de Polignac number, because 206764073 - 2⁶ = 206764009 is a prime.

It is not a weakly prime, because it can be changed into another prime (206764573) 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 as a sum of consecutive naturals, namely, 103382036 + 103382037.

It is an arithmetic number, because the mean of its divisors is an integer number (103382037).

Almost surely, 2^206764073 is an apocalyptic number.

It is an amenable number.

206764073 is a deficient number, since it is larger than the sum of its proper divisors (1).

206764073 is an equidigital number, since it uses as much as digits as its factorization.

206764073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 206764073 is about 14379.2932023796. The cubic root of 206764073 is about 591.3233467166.

The spelling of 206764073 in words is "two hundred six million, seven hundred sixty-four thousand, seventy-three".