198000806 has 8 divisors (see below), whose sum is σ = 307242720. Its totient is φ = 95586568.

The previous prime is 198000799. The next prime is 198000833. The reversal of 198000806 is 608000891.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1706846 + ... + 1706961.

It is an arithmetic number, because the mean of its divisors is an integer number (38405340).

Almost surely, 2^198000806 is an apocalyptic number.

198000806 is a deficient number, since it is larger than the sum of its proper divisors (109241914).

198000806 is a wasteful number, since it uses less digits than its factorization.

198000806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3413838.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 198000806 is about 14071.2759194040. The cubic root of 198000806 is about 582.8484591914.

The spelling of 198000806 in words is "one hundred ninety-eight million, eight hundred six", and thus it is an aban number.