208916099 has 8 divisors (see below), whose sum is σ = 246463488. Its totient is φ = 173294280.

The previous prime is 208916093. The next prime is 208916137. The reversal of 208916099 is 990619802.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-208916099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208916093) 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, 481157 + ... + 481590.

It is an arithmetic number, because the mean of its divisors is an integer number (30807936).

Almost surely, 2^208916099 is an apocalyptic number.

208916099 is a deficient number, since it is larger than the sum of its proper divisors (37547389).

208916099 is an equidigital number, since it uses as much as digits as its factorization.

208916099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962785.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 208916099 is about 14453.9302267584. The cubic root of 208916099 is about 593.3677922236.

The spelling of 208916099 in words is "two hundred eight million, nine hundred sixteen thousand, ninety-nine".