206808093 has 16 divisors (see below), whose sum is σ = 308340160. Its totient is φ = 136991088.

The previous prime is 206808083. The next prime is 206808109. The reversal of 206808093 is 390808602.

It is not a de Polignac number, because 206808093 - 2⁵ = 206808061 is a prime.

It is a super-3 number, since 3×206808093³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206808013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20155 + ... + 28632.

It is an arithmetic number, because the mean of its divisors is an integer number (19271260).

Almost surely, 2^206808093 is an apocalyptic number.

It is an amenable number.

206808093 is a deficient number, since it is larger than the sum of its proper divisors (101532067).

206808093 is a wasteful number, since it uses less digits than its factorization.

206808093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48953 (or 48947 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 206808093 is about 14380.8237942059. The cubic root of 206808093 is about 591.3653079179.

The spelling of 206808093 in words is "two hundred six million, eight hundred eight thousand, ninety-three".