206279 has 2 divisors, whose sum is σ = 206280. Its totient is φ = 206278.

The previous prime is 206273. The next prime is 206281. The reversal of 206279 is 972602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206279 - 2⁴ = 206263 is a prime.

Together with 206281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103139 + 103140.

It is an arithmetic number, because the mean of its divisors is an integer number (103140).

2²⁰⁶²⁷⁹ is an apocalyptic number.

206279 is a deficient number, since it is larger than the sum of its proper divisors (1).

206279 is an equidigital number, since it uses as much as digits as its factorization.

206279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 206279 is about 454.1794799416. The cubic root of 206279 is about 59.0860565497.

The spelling of 206279 in words is "two hundred six thousand, two hundred seventy-nine".