208971682 has 16 divisors (see below), whose sum is σ = 330458112. Its totient is φ = 98962560.

The previous prime is 208971677. The next prime is 208971683. The reversal of 208971682 is 286179802.

208971682 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (208971683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32943 + ... + 38770.

It is an arithmetic number, because the mean of its divisors is an integer number (20653632).

Almost surely, 2^208971682 is an apocalyptic number.

208971682 is a deficient number, since it is larger than the sum of its proper divisors (121486430).

208971682 is a wasteful number, since it uses less digits than its factorization.

208971682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71793.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 208971682 is about 14455.8528631140. The cubic root of 208971682 is about 593.4204102166.

The spelling of 208971682 in words is "two hundred eight million, nine hundred seventy-one thousand, six hundred eighty-two".