208868529 has 8 divisors (see below), whose sum is σ = 279173920. Its totient is φ = 138904416.

The previous prime is 208868521. The next prime is 208868531. The reversal of 208868529 is 925868802.

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

It is not a de Polignac number, because 208868529 - 2³ = 208868521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208868521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83887 + ... + 86340.

It is an arithmetic number, because the mean of its divisors is an integer number (34896740).

Almost surely, 2^208868529 is an apocalyptic number.

It is an amenable number.

208868529 is a deficient number, since it is larger than the sum of its proper divisors (70305391).

208868529 is a wasteful number, since it uses less digits than its factorization.

208868529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170639.

The product of its (nonzero) digits is 552960, while the sum is 48.

The square root of 208868529 is about 14452.2845598888. The cubic root of 208868529 is about 593.3227523748.

The spelling of 208868529 in words is "two hundred eight million, eight hundred sixty-eight thousand, five hundred twenty-nine".