198889795 has 8 divisors (see below), whose sum is σ = 257026896. Its totient is φ = 146872416.

The previous prime is 198889771. The next prime is 198889799. The reversal of 198889795 is 597988891.

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 198889795 - 2⁷ = 198889667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198889799) 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, 1529857 + ... + 1529986.

It is an arithmetic number, because the mean of its divisors is an integer number (32128362).

Almost surely, 2^198889795 is an apocalyptic number.

198889795 is a deficient number, since it is larger than the sum of its proper divisors (58137101).

198889795 is a wasteful number, since it uses less digits than its factorization.

198889795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3059861.

The product of its digits is 13063680, while the sum is 64.

The square root of 198889795 is about 14102.8293260608. The cubic root of 198889795 is about 583.7194528444.

The spelling of 198889795 in words is "one hundred ninety-eight million, eight hundred eighty-nine thousand, seven hundred ninety-five".