206820059 has 2 divisors, whose sum is σ = 206820060. Its totient is φ = 206820058.

The previous prime is 206820043. The next prime is 206820077. The reversal of 206820059 is 950028602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 206820059 - 2⁴ = 206820043 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (206823059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103410029 + 103410030.

It is an arithmetic number, because the mean of its divisors is an integer number (103410030).

Almost surely, 2^206820059 is an apocalyptic number.

206820059 is a deficient number, since it is larger than the sum of its proper divisors (1).

206820059 is an equidigital number, since it uses as much as digits as its factorization.

206820059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 206820059 is about 14381.2398283319. The cubic root of 206820059 is about 591.3767132433.

The spelling of 206820059 in words is "two hundred six million, eight hundred twenty thousand, fifty-nine".