198486873 has 24 divisors (see below), whose sum is σ = 311510472. Its totient is φ = 121056768.

The previous prime is 198486853. The next prime is 198486887. The reversal of 198486873 is 378684891.

198486873 is a `hidden beast` number, since 1 + 98 + 486 + 8 + 73 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 15129 + 198471744 = 123^2 + 14088^2 .

It is not a de Polignac number, because 198486873 - 2⁶ = 198486809 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (198486853) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5715 + ... + 20727.

It is an arithmetic number, because the mean of its divisors is an integer number (12979603).

Almost surely, 2^198486873 is an apocalyptic number.

198486873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

198486873 is a deficient number, since it is larger than the sum of its proper divisors (113023599).

198486873 is a wasteful number, since it uses less digits than its factorization.

198486873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15145 (or 15142 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 198486873 is about 14088.5369361052. The cubic root of 198486873 is about 583.3250092599.

The spelling of 198486873 in words is "one hundred ninety-eight million, four hundred eighty-six thousand, eight hundred seventy-three".