208066889 has 8 divisors (see below), whose sum is σ = 209651040. Its totient is φ = 206488800.

The previous prime is 208066883. The next prime is 208066897. The reversal of 208066889 is 988660802.

208066889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-208066889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208066883) 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, 85094 + ... + 87504.

It is an arithmetic number, because the mean of its divisors is an integer number (26206380).

Almost surely, 2^208066889 is an apocalyptic number.

It is an amenable number.

208066889 is a deficient number, since it is larger than the sum of its proper divisors (1584151).

208066889 is a wasteful number, since it uses less digits than its factorization.

208066889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3031.

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 208066889 is about 14424.5238742913. The cubic root of 208066889 is about 592.5627191821.

The spelling of 208066889 in words is "two hundred eight million, sixty-six thousand, eight hundred eighty-nine".