198473179 has 2 divisors, whose sum is σ = 198473180. Its totient is φ = 198473178.

The previous prime is 198473173. The next prime is 198473189. The reversal of 198473179 is 971374891.

It is a weak prime.

It is an emirp because it is prime and its reverse (971374891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 198473179 - 2⁹ = 198472667 is a prime.

It is a super-4 number, since 4×198473179⁴ (a number of 34 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (198473173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99236589 + 99236590.

It is an arithmetic number, because the mean of its divisors is an integer number (99236590).

Almost surely, 2^198473179 is an apocalyptic number.

198473179 is a deficient number, since it is larger than the sum of its proper divisors (1).

198473179 is an equidigital number, since it uses as much as digits as its factorization.

198473179 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 49.

The square root of 198473179 is about 14088.0509297773. The cubic root of 198473179 is about 583.3115940379.

The spelling of 198473179 in words is "one hundred ninety-eight million, four hundred seventy-three thousand, one hundred seventy-nine".