198470 has 16 divisors (see below), whose sum is σ = 362880. Its totient is φ = 78144.

The previous prime is 198469. The next prime is 198479. The reversal of 198470 is 74891.

It is a nialpdrome in base 9.

It is a zygodrome in base 9.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 198470.

It is not an unprimeable number, because it can be changed into a prime (198479) 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, 779 + ... + 1001.

It is an arithmetic number, because the mean of its divisors is an integer number (22680).

2¹⁹⁸⁴⁷⁰ is an apocalyptic number.

198470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a pronic number, being equal to 445×446.

198470 is a deficient number, since it is larger than the sum of its proper divisors (164410).

198470 is a wasteful number, since it uses less digits than its factorization.

198470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 198470 is about 445.4997194163. The cubic root of 198470 is about 58.3308479667.

The spelling of 198470 in words is "one hundred ninety-eight thousand, four hundred seventy".