198565467 has 4 divisors (see below), whose sum is σ = 264753960. Its totient is φ = 132376976.

The previous prime is 198565441. The next prime is 198565483. The reversal of 198565467 is 764565891.

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-198565467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198565427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33094242 + ... + 33094247.

It is an arithmetic number, because the mean of its divisors is an integer number (66188490).

Almost surely, 2^198565467 is an apocalyptic number.

198565467 is a deficient number, since it is larger than the sum of its proper divisors (66188493).

198565467 is an equidigital number, since it uses as much as digits as its factorization.

198565467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66188492.

The product of its digits is 1814400, while the sum is 51.

The square root of 198565467 is about 14091.3259489659. The cubic root of 198565467 is about 583.4019913382.

The spelling of 198565467 in words is "one hundred ninety-eight million, five hundred sixty-five thousand, four hundred sixty-seven".