208668006 has 96 divisors (see below), whose sum is σ = 496005120. Its totient is φ = 63201600.

The previous prime is 208668001. The next prime is 208668067. The reversal of 208668006 is 600866802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208668001) 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 47 ways as a sum of consecutive naturals, for example, 911100 + ... + 911328.

It is an arithmetic number, because the mean of its divisors is an integer number (5166720).

Almost surely, 2^208668006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208668006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248002560).

208668006 is an abundant number, since it is smaller than the sum of its proper divisors (287337114).

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

208668006 is a wasteful number, since it uses less digits than its factorization.

208668006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 208668006 is about 14445.3454787347. The cubic root of 208668006 is about 593.1328195770.

The spelling of 208668006 in words is "two hundred eight million, six hundred sixty-eight thousand, six".