206206 has 32 divisors (see below), whose sum is σ = 419328. Its totient is φ = 73440.

The previous prime is 206203. The next prime is 206209. The reversal of 206206 is 602602.

It is an interprime number because it is at equal distance from previous prime (206203) and next prime (206209).

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 206206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1951 + ... + 2053.

It is an arithmetic number, because the mean of its divisors is an integer number (13104).

2²⁰⁶²⁰⁶ is an apocalyptic number.

206206 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

206206 is an abundant number, since it is smaller than the sum of its proper divisors (213122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206206 is a wasteful number, since it uses less digits than its factorization.

206206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 206206 is about 454.0991081251. The cubic root of 206206 is about 59.0790857463.

Adding to 206206 its reverse (602602), we get a palindrome (808808).

It can be divided in two parts, 20 and 6206, that added together give a palindrome (6226).

The spelling of 206206 in words is "two hundred six thousand, two hundred six".