198473173 has 2 divisors, whose sum is σ = 198473174. Its totient is φ = 198473172.

The previous prime is 198473167. The next prime is 198473179. The reversal of 198473173 is 371374891.

It is a balanced prime because it is at equal distance from previous prime (198473167) and next prime (198473179).

It can be written as a sum of positive squares in only one way, i.e., 132181009 + 66292164 = 11497^2 + 8142^2 .

It is a cyclic number.

It is not a de Polignac number, because 198473173 - 2⁹ = 198472661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198473179) by changing a digit.

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 as a sum of consecutive naturals, namely, 99236586 + 99236587.

It is an arithmetic number, because the mean of its divisors is an integer number (99236587).

Almost surely, 2^198473173 is an apocalyptic number.

It is an amenable number.

198473173 is a deficient number, since it is larger than the sum of its proper divisors (1).

198473173 is an equidigital number, since it uses as much as digits as its factorization.

198473173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 43.

The square root of 198473173 is about 14088.0507168309. The cubic root of 198473173 is about 583.3115881599.

It can be divided in two parts, 1984 and 73173, that added together give a palindrome (75157).

The spelling of 198473173 in words is "one hundred ninety-eight million, four hundred seventy-three thousand, one hundred seventy-three".