198411609 has 8 divisors (see below), whose sum is σ = 288598752. Its totient is φ = 120249440.

The previous prime is 198411601. The next prime is 198411613. The reversal of 198411609 is 906114891.

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 198411609 - 2³ = 198411601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198411601) 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, 3006204 + ... + 3006269.

It is an arithmetic number, because the mean of its divisors is an integer number (36074844).

Almost surely, 2^198411609 is an apocalyptic number.

It is an amenable number.

198411609 is a deficient number, since it is larger than the sum of its proper divisors (90187143).

198411609 is a wasteful number, since it uses less digits than its factorization.

198411609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6012487.

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 198411609 is about 14085.8655751076. The cubic root of 198411609 is about 583.2512698345.

The spelling of 198411609 in words is "one hundred ninety-eight million, four hundred eleven thousand, six hundred nine".