208863994 has 8 divisors (see below), whose sum is σ = 314041428. Its totient is φ = 104183520.

The previous prime is 208863983. The next prime is 208864013. The reversal of 208863994 is 499368802.

208863994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 185967769 + 22896225 = 13637^2 + 4785^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123187 + ... + 124870.

Almost surely, 2^208863994 is an apocalyptic number.

208863994 is a deficient number, since it is larger than the sum of its proper divisors (105177434).

208863994 is a wasteful number, since it uses less digits than its factorization.

208863994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248480.

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 208863994 is about 14452.1276634273. The cubic root of 208863994 is about 593.3184582252.

The spelling of 208863994 in words is "two hundred eight million, eight hundred sixty-three thousand, nine hundred ninety-four".