198253869 has 8 divisors (see below), whose sum is σ = 288369312. Its totient is φ = 120153840.

The previous prime is 198253837. The next prime is 198253877. The reversal of 198253869 is 968352891.

It is a happy number.

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

It is not a de Polignac number, because 198253869 - 2⁵ = 198253837 is a prime.

It is a super-2 number, since 2×198253869² = 78609193146938322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198253829) 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, 3003814 + ... + 3003879.

It is an arithmetic number, because the mean of its divisors is an integer number (36046164).

Almost surely, 2^198253869 is an apocalyptic number.

It is an amenable number.

198253869 is a deficient number, since it is larger than the sum of its proper divisors (90115443).

198253869 is a wasteful number, since it uses less digits than its factorization.

198253869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6007707.

The product of its digits is 933120, while the sum is 51.

The square root of 198253869 is about 14080.2652318768. The cubic root of 198253869 is about 583.0966645546.

The spelling of 198253869 in words is "one hundred ninety-eight million, two hundred fifty-three thousand, eight hundred sixty-nine".