198692897 has 16 divisors (see below), whose sum is σ = 217362432. Its totient is φ = 180532800.

The previous prime is 198692869. The next prime is 198692903. The reversal of 198692897 is 798296891.

198692897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 198692897 - 2²⁴ = 181915681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198692867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248903 + ... + 249699.

It is an arithmetic number, because the mean of its divisors is an integer number (13585152).

Almost surely, 2^198692897 is an apocalyptic number.

It is an amenable number.

198692897 is a deficient number, since it is larger than the sum of its proper divisors (18669535).

198692897 is a wasteful number, since it uses less digits than its factorization.

198692897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088.

The product of its digits is 3919104, while the sum is 59.

The square root of 198692897 is about 14095.8467996783. The cubic root of 198692897 is about 583.5267646590.

The spelling of 198692897 in words is "one hundred ninety-eight million, six hundred ninety-two thousand, eight hundred ninety-seven".