208968089 has 12 divisors (see below), whose sum is σ = 235039728. Its totient is φ = 185548440.

The previous prime is 208968083. The next prime is 208968101. The reversal of 208968089 is 980869802.

208968089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 208968089 - 2¹⁶ = 208902553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (208968083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14879 + ... + 25284.

It is an arithmetic number, because the mean of its divisors is an integer number (19586644).

Almost surely, 2^208968089 is an apocalyptic number.

It is an amenable number.

208968089 is a deficient number, since it is larger than the sum of its proper divisors (26071639).

208968089 is a wasteful number, since it uses less digits than its factorization.

208968089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40228 (or 40217 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 208968089 is about 14455.7285876569. The cubic root of 208968089 is about 593.4170091629.

The spelling of 208968089 in words is "two hundred eight million, nine hundred sixty-eight thousand, eighty-nine".