198832489 has 8 divisors (see below), whose sum is σ = 202322120. Its totient is φ = 195350400.

The previous prime is 198832457. The next prime is 198832591. The reversal of 198832489 is 984238891.

It can be written as a sum of positive squares in 4 ways, for example, as 2832489 + 196000000 = 1683^2 + 14000^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 198832489 - 2⁵ = 198832457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198832409) 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 in 7 ways as a sum of consecutive naturals, for example, 86029 + ... + 88309.

It is an arithmetic number, because the mean of its divisors is an integer number (25290265).

Almost surely, 2^198832489 is an apocalyptic number.

It is an amenable number.

198832489 is a deficient number, since it is larger than the sum of its proper divisors (3489631).

198832489 is a wasteful number, since it uses less digits than its factorization.

198832489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3771.

The product of its digits is 995328, while the sum is 52.

The square root of 198832489 is about 14100.7974597184. The cubic root of 198832489 is about 583.6633852113.

The spelling of 198832489 in words is "one hundred ninety-eight million, eight hundred thirty-two thousand, four hundred eighty-nine".