208898121 has 8 divisors (see below), whose sum is σ = 290640960. Its totient is φ = 133210352.

The previous prime is 208898113. The next prime is 208898147. The reversal of 208898121 is 121898802.

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

It is a cyclic number.

It is not a de Polignac number, because 208898121 - 2³ = 208898113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 208898121.

It is not an unprimeable number, because it can be changed into a prime (208898021) 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, 1513686 + ... + 1513823.

It is an arithmetic number, because the mean of its divisors is an integer number (36330120).

Almost surely, 2^208898121 is an apocalyptic number.

It is an amenable number.

208898121 is a deficient number, since it is larger than the sum of its proper divisors (81742839).

208898121 is a wasteful number, since it uses less digits than its factorization.

208898121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027535.

The product of its (nonzero) digits is 18432, while the sum is 39.

The square root of 208898121 is about 14453.3083064051. The cubic root of 208898121 is about 593.3507712405.

The spelling of 208898121 in words is "two hundred eight million, eight hundred ninety-eight thousand, one hundred twenty-one".