198470173 has 4 divisors (see below), whose sum is σ = 216512928. Its totient is φ = 180427420.

The previous prime is 198470161. The next prime is 198470179. The reversal of 198470173 is 371074891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 198470173 - 2¹³ = 198461981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198470179) 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, 9021361 + ... + 9021382.

It is an arithmetic number, because the mean of its divisors is an integer number (54128232).

Almost surely, 2^198470173 is an apocalyptic number.

It is an amenable number.

198470173 is a deficient number, since it is larger than the sum of its proper divisors (18042755).

198470173 is a wasteful number, since it uses less digits than its factorization.

198470173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18042754.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 198470173 is about 14087.9442432173. The cubic root of 198470173 is about 583.3086491505.

The spelling of 198470173 in words is "one hundred ninety-eight million, four hundred seventy thousand, one hundred seventy-three".