206868223 has 12 divisors (see below), whose sum is σ = 227339640. Its totient is φ = 187978112.

The previous prime is 206868217. The next prime is 206868229. The reversal of 206868223 is 322868602.

It is an interprime number because it is at equal distance from previous prime (206868217) and next prime (206868229).

It is a de Polignac number, because none of the positive numbers 2^k-206868223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206868229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3961 + ... + 20722.

It is an arithmetic number, because the mean of its divisors is an integer number (18944970).

Almost surely, 2^206868223 is an apocalyptic number.

206868223 is a deficient number, since it is larger than the sum of its proper divisors (20471417).

206868223 is a wasteful number, since it uses less digits than its factorization.

206868223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24746 (or 24729 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 206868223 is about 14382.9142735400. The cubic root of 206868223 is about 591.4226160399.

The spelling of 206868223 in words is "two hundred six million, eight hundred sixty-eight thousand, two hundred twenty-three".