206808212 has 12 divisors (see below), whose sum is σ = 389754036. Its totient is φ = 95449920.

The previous prime is 206808191. The next prime is 206808229. The reversal of 206808212 is 212808602.

It can be written as a sum of positive squares in 2 ways, for example, as 15649936 + 191158276 = 3956^2 + 13826^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1988489 + ... + 1988592.

It is an arithmetic number, because the mean of its divisors is an integer number (32479503).

Almost surely, 2^206808212 is an apocalyptic number.

It is an amenable number.

206808212 is a deficient number, since it is larger than the sum of its proper divisors (182945824).

206808212 is a wasteful number, since it uses less digits than its factorization.

206808212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3977098 (or 3977096 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 206808212 is about 14380.8279316596. The cubic root of 206808212 is about 591.3654213442.

The spelling of 206808212 in words is "two hundred six million, eight hundred eight thousand, two hundred twelve".