198330827 has 4 divisors (see below), whose sum is σ = 198417960. Its totient is φ = 198243696.

The previous prime is 198330809. The next prime is 198330829. The reversal of 198330827 is 728033891.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198330827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198330829) 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, 40058 + ... + 44735.

It is an arithmetic number, because the mean of its divisors is an integer number (49604490).

Almost surely, 2^198330827 is an apocalyptic number.

198330827 is a deficient number, since it is larger than the sum of its proper divisors (87133).

198330827 is an equidigital number, since it uses as much as digits as its factorization.

198330827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87132.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 198330827 is about 14082.9977987643. The cubic root of 198330827 is about 583.1721034320.

The spelling of 198330827 in words is "one hundred ninety-eight million, three hundred thirty thousand, eight hundred twenty-seven".