208605968 has 20 divisors (see below), whose sum is σ = 409712988. Its totient is φ = 102873600.

The previous prime is 208605967. The next prime is 208605979. The reversal of 208605968 is 869506802.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 61905424 + 146700544 = 7868^2 + 12112^2 .

It is a super-3 number, since 3×208605968³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (208605967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88133 + ... + 90468.

Almost surely, 2^208605968 is an apocalyptic number.

It is an amenable number.

208605968 is a deficient number, since it is larger than the sum of its proper divisors (201107020).

208605968 is a wasteful number, since it uses less digits than its factorization.

208605968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178682 (or 178676 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 208605968 is about 14443.1979838262. The cubic root of 208605968 is about 593.0740333391.

The spelling of 208605968 in words is "two hundred eight million, six hundred five thousand, nine hundred sixty-eight".