809106198 has 8 divisors (see below), whose sum is σ = 1618212408. Its totient is φ = 269702064.

The previous prime is 809106187. The next prime is 809106223. The reversal of 809106198 is 891601908.

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

809106198 is an admirable number.

It is a congruent number.

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, 67425511 + ... + 67425522.

It is an arithmetic number, because the mean of its divisors is an integer number (202276551).

Almost surely, 2^809106198 is an apocalyptic number.

809106198 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.

809106198 is a wasteful number, since it uses less digits than its factorization.

809106198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134851038.

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 809106198 is about 28444.7921068163. The cubic root of 809106198 is about 931.8267551463.

The spelling of 809106198 in words is "eight hundred nine million, one hundred six thousand, one hundred ninety-eight".