206934613 has 2 divisors, whose sum is σ = 206934614. Its totient is φ = 206934612.

The previous prime is 206934593. The next prime is 206934617. The reversal of 206934613 is 316439602.

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., 181764324 + 25170289 = 13482^2 + 5017^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206934613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206934617) 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, 103467306 + 103467307.

It is an arithmetic number, because the mean of its divisors is an integer number (103467307).

Almost surely, 2^206934613 is an apocalyptic number.

It is an amenable number.

206934613 is a deficient number, since it is larger than the sum of its proper divisors (1).

206934613 is an equidigital number, since it uses as much as digits as its factorization.

206934613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 206934613 is about 14385.2220351304. Note that the first 3 decimals coincide. The cubic root of 206934613 is about 591.4858774844.

The spelling of 206934613 in words is "two hundred six million, nine hundred thirty-four thousand, six hundred thirteen".