208689339 has 8 divisors (see below), whose sum is σ = 279572032. Its totient is φ = 138466440.

The previous prime is 208689319. The next prime is 208689347. The reversal of 208689339 is 933986802.

208689339 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 not a de Polignac number, because 208689339 - 2⁹ = 208688827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208689319) 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, 164209 + ... + 165474.

It is an arithmetic number, because the mean of its divisors is an integer number (34946504).

Almost surely, 2^208689339 is an apocalyptic number.

208689339 is a deficient number, since it is larger than the sum of its proper divisors (70882693).

208689339 is a wasteful number, since it uses less digits than its factorization.

208689339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329897.

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 208689339 is about 14446.0838638020. The cubic root of 208689339 is about 593.1530317016.

The spelling of 208689339 in words is "two hundred eight million, six hundred eighty-nine thousand, three hundred thirty-nine".