198648273 has 16 divisors (see below), whose sum is σ = 274323456. Its totient is φ = 127782480.

The previous prime is 198648259. The next prime is 198648277. The reversal of 198648273 is 372846891.

It is not a de Polignac number, because 198648273 - 2¹⁰ = 198647249 is a prime.

It is a super-2 number, since 2×198648273² = 78922272731765058, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (198648277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90 + ... + 19932.

It is an arithmetic number, because the mean of its divisors is an integer number (17145216).

Almost surely, 2^198648273 is an apocalyptic number.

It is an amenable number.

198648273 is a deficient number, since it is larger than the sum of its proper divisors (75675183).

198648273 is a wasteful number, since it uses less digits than its factorization.

198648273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19964.

The product of its digits is 580608, while the sum is 48.

The square root of 198648273 is about 14094.2638332053. The cubic root of 198648273 is about 583.4830770581.

The spelling of 198648273 in words is "one hundred ninety-eight million, six hundred forty-eight thousand, two hundred seventy-three".