198841669 has 8 divisors (see below), whose sum is σ = 225407840. Its totient is φ = 173885616.

The previous prime is 198841651. The next prime is 198841681. The reversal of 198841669 is 966148891.

198841669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 198841669 - 2⁷ = 198841541 is a prime.

It is a super-2 number, since 2×198841669² = 79076018661411122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198841609) 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, 402267 + ... + 402760.

It is an arithmetic number, because the mean of its divisors is an integer number (28175980).

Almost surely, 2^198841669 is an apocalyptic number.

198841669 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

198841669 is a deficient number, since it is larger than the sum of its proper divisors (26566171).

198841669 is a wasteful number, since it uses less digits than its factorization.

198841669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805059.

The product of its digits is 746496, while the sum is 52.

The square root of 198841669 is about 14101.1229694659. The cubic root of 198841669 is about 583.6723675586.

The spelling of 198841669 in words is "one hundred ninety-eight million, eight hundred forty-one thousand, six hundred sixty-nine".