208116858 has 8 divisors (see below), whose sum is σ = 416233728. Its totient is φ = 69372284.

The previous prime is 208116851. The next prime is 208116869. The reversal of 208116858 is 858611802.

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

208116858 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (208116851) 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, 17343066 + ... + 17343077.

It is an arithmetic number, because the mean of its divisors is an integer number (52029216).

Almost surely, 2^208116858 is an apocalyptic number.

208116858 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

208116858 is a wasteful number, since it uses less digits than its factorization.

208116858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34686148.

The product of its (nonzero) digits is 30720, while the sum is 39.

The square root of 208116858 is about 14426.2558552107. The cubic root of 208116858 is about 592.6101516795.

The spelling of 208116858 in words is "two hundred eight million, one hundred sixteen thousand, eight hundred fifty-eight".