198537873 has 8 divisors (see below), whose sum is σ = 264782688. Its totient is φ = 132325824.

The previous prime is 198537847. The next prime is 198537877. The reversal of 198537873 is 378735891.

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

It is not a de Polignac number, because 198537873 - 2⁶ = 198537809 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (198537877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17161 + ... + 26297.

It is an arithmetic number, because the mean of its divisors is an integer number (33097836).

Almost surely, 2^198537873 is an apocalyptic number.

It is an amenable number.

198537873 is a deficient number, since it is larger than the sum of its proper divisors (66244815).

198537873 is an equidigital number, since it uses as much as digits as its factorization.

198537873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16383.

The product of its digits is 1270080, while the sum is 51.

The square root of 198537873 is about 14090.3468019776. The cubic root of 198537873 is about 583.3749655910.

The spelling of 198537873 in words is "one hundred ninety-eight million, five hundred thirty-seven thousand, eight hundred seventy-three".