198361969 has 8 divisors (see below), whose sum is σ = 216325760. Its totient is φ = 180784656.

The previous prime is 198361939. The next prime is 198361979. The reversal of 198361969 is 969163891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 198361969 - 2⁷ = 198361841 is a prime.

It is a super-2 number, since 2×198361969² = 78694941491113922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198361939) 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, 95547 + ... + 97600.

It is an arithmetic number, because the mean of its divisors is an integer number (27040720).

Almost surely, 2^198361969 is an apocalyptic number.

It is an amenable number.

198361969 is a deficient number, since it is larger than the sum of its proper divisors (17963791).

198361969 is a wasteful number, since it uses less digits than its factorization.

198361969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193239.

The product of its digits is 629856, while the sum is 52.

The square root of 198361969 is about 14084.1034148433. The cubic root of 198361969 is about 583.2026251542.

The spelling of 198361969 in words is "one hundred ninety-eight million, three hundred sixty-one thousand, nine hundred sixty-nine".