198080605 has 8 divisors (see below), whose sum is σ = 250207200. Its totient is φ = 150124176.

The previous prime is 198080593. The next prime is 198080611. The reversal of 198080605 is 506080891.

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

It is a cyclic number.

It is not a de Polignac number, because 198080605 - 2¹¹ = 198078557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1042435 + ... + 1042624.

It is an arithmetic number, because the mean of its divisors is an integer number (31275900).

Almost surely, 2^198080605 is an apocalyptic number.

It is an amenable number.

198080605 is a deficient number, since it is larger than the sum of its proper divisors (52126595).

198080605 is a wasteful number, since it uses less digits than its factorization.

198080605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085083.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 198080605 is about 14074.1111619882. Note that the first 4 decimals coincide. The cubic root of 198080605 is about 582.9267492386.

The spelling of 198080605 in words is "one hundred ninety-eight million, eighty thousand, six hundred five".