208889229 has 8 divisors (see below), whose sum is σ = 279768832. Its totient is φ = 138634560.

The previous prime is 208889221. The next prime is 208889231. The reversal of 208889229 is 922988802.

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

It is not a de Polignac number, because 208889229 - 2³ = 208889221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208889221) 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, 155452 + ... + 156789.

It is an arithmetic number, because the mean of its divisors is an integer number (34971104).

Almost surely, 2^208889229 is an apocalyptic number.

It is an amenable number.

208889229 is a deficient number, since it is larger than the sum of its proper divisors (70879603).

208889229 is a wasteful number, since it uses less digits than its factorization.

208889229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312467.

The product of its (nonzero) digits is 331776, while the sum is 48.

The square root of 208889229 is about 14453.0006918979. Note that the first 3 decimals coincide. The cubic root of 208889229 is about 593.3423522244.

The spelling of 208889229 in words is "two hundred eight million, eight hundred eighty-nine thousand, two hundred twenty-nine".