198885697 has 8 divisors (see below), whose sum is σ = 202124160. Its totient is φ = 195659520.

The previous prime is 198885691. The next prime is 198885721. The reversal of 198885697 is 796588891.

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 198885697 - 2³ = 198885689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198885691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32929 + ... + 38497.

It is an arithmetic number, because the mean of its divisors is an integer number (25265520).

Almost surely, 2^198885697 is an apocalyptic number.

It is an amenable number.

198885697 is a deficient number, since it is larger than the sum of its proper divisors (3238463).

198885697 is an equidigital number, since it uses as much as digits as its factorization.

198885697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6143.

The product of its digits is 8709120, while the sum is 61.

The square root of 198885697 is about 14102.6840353175. The cubic root of 198885697 is about 583.7154437587.

The spelling of 198885697 in words is "one hundred ninety-eight million, eight hundred eighty-five thousand, six hundred ninety-seven".