206867 has 4 divisors (see below), whose sum is σ = 212496. Its totient is φ = 201240.

The previous prime is 206827. The next prime is 206879. The reversal of 206867 is 768602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 768602 = 2 ⋅384301.

It is a cyclic number.

It is not a de Polignac number, because 206867 - 2⁶ = 206803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 206867.

It is not an unprimeable number, because it can be changed into a prime (206807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2759 + ... + 2832.

It is an arithmetic number, because the mean of its divisors is an integer number (53124).

2²⁰⁶⁸⁶⁷ is an apocalyptic number.

206867 is a deficient number, since it is larger than the sum of its proper divisors (5629).

206867 is an equidigital number, since it uses as much as digits as its factorization.

206867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5628.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 206867 is about 454.8263404861. The cubic root of 206867 is about 59.1421450545.

The spelling of 206867 in words is "two hundred six thousand, eight hundred sixty-seven".