198039 has 8 divisors (see below), whose sum is σ = 266112. Its totient is φ = 131000.

The previous prime is 198031. The next prime is 198043. The reversal of 198039 is 930891.

It is a happy number.

198039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 198039 - 2³ = 198031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 197997 and 198015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198031) 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, 622 + ... + 884.

It is an arithmetic number, because the mean of its divisors is an integer number (33264).

2¹⁹⁸⁰³⁹ is an apocalyptic number.

198039 is a deficient number, since it is larger than the sum of its proper divisors (68073).

198039 is a wasteful number, since it uses less digits than its factorization.

198039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 198039 is about 445.0157300591. The cubic root of 198039 is about 58.2885933589.

The spelling of 198039 in words is "one hundred ninety-eight thousand, thirty-nine".