206972273 has 2 divisors, whose sum is σ = 206972274. Its totient is φ = 206972272.

The previous prime is 206972243. The next prime is 206972291. The reversal of 206972273 is 372279602.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176810209 + 30162064 = 13297^2 + 5492^2 .

It is a cyclic number.

It is not a de Polignac number, because 206972273 - 2⁶ = 206972209 is a prime.

It is not a weakly prime, because it can be changed into another prime (206972243) 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, 103486136 + 103486137.

It is an arithmetic number, because the mean of its divisors is an integer number (103486137).

Almost surely, 2^206972273 is an apocalyptic number.

It is an amenable number.

206972273 is a deficient number, since it is larger than the sum of its proper divisors (1).

206972273 is an equidigital number, since it uses as much as digits as its factorization.

206972273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 206972273 is about 14386.5309578091. The cubic root of 206972273 is about 591.5217567841.

The spelling of 206972273 in words is "two hundred six million, nine hundred seventy-two thousand, two hundred seventy-three".