198815675 has 6 divisors (see below), whose sum is σ = 246531468. Its totient is φ = 159052520.

The previous prime is 198815621. The next prime is 198815693. The reversal of 198815675 is 576518891.

It is a de Polignac number, because none of the positive numbers 2^k-198815675 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3976289 + ... + 3976338.

It is an arithmetic number, because the mean of its divisors is an integer number (41088578).

Almost surely, 2^198815675 is an apocalyptic number.

198815675 is a deficient number, since it is larger than the sum of its proper divisors (47715793).

198815675 is an equidigital number, since it uses as much as digits as its factorization.

198815675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7952637 (or 7952632 counting only the distinct ones).

The product of its digits is 604800, while the sum is 50.

The square root of 198815675 is about 14100.2012396987. The cubic root of 198815675 is about 583.6469325131.

The spelling of 198815675 in words is "one hundred ninety-eight million, eight hundred fifteen thousand, six hundred seventy-five".