198379 has 8 divisors (see below), whose sum is σ = 213840. Its totient is φ = 183456.

The previous prime is 198377. The next prime is 198391. The reversal of 198379 is 973891.

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 198379 - 2¹ = 198377 is a prime.

It is a Duffinian number.

198379 is a lucky number.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (198377) 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, 909 + ... + 1105.

It is an arithmetic number, because the mean of its divisors is an integer number (26730).

2¹⁹⁸³⁷⁹ is an apocalyptic number.

198379 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

198379 is a deficient number, since it is larger than the sum of its proper divisors (15461).

198379 is a wasteful number, since it uses less digits than its factorization.

198379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269.

The product of its digits is 13608, while the sum is 37.

The square root of 198379 is about 445.3975752067. The cubic root of 198379 is about 58.3219315584.

It can be divided in two parts, 19 and 8379, that multiplied together give a square (159201 = 399²).

The spelling of 198379 in words is "one hundred ninety-eight thousand, three hundred seventy-nine".