198834369 has 4 divisors (see below), whose sum is σ = 265112496. Its totient is φ = 132556244.

The previous prime is 198834347. The next prime is 198834439. The reversal of 198834369 is 963438891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 198834369 - 2⁸ = 198834113 is a prime.

It is a super-2 number, since 2×198834369² = 79070212591256322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (198834169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33139059 + ... + 33139064.

It is an arithmetic number, because the mean of its divisors is an integer number (66278124).

Almost surely, 2^198834369 is an apocalyptic number.

It is an amenable number.

198834369 is a deficient number, since it is larger than the sum of its proper divisors (66278127).

198834369 is an equidigital number, since it uses as much as digits as its factorization.

198834369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66278126.

The product of its digits is 1119744, while the sum is 51.

The square root of 198834369 is about 14100.8641224572. The cubic root of 198834369 is about 583.6652247559.

It can be divided in two parts, 19 and 8834369, that added together give a palindrome (8834388).

The spelling of 198834369 in words is "one hundred ninety-eight million, eight hundred thirty-four thousand, three hundred sixty-nine".