197802873 has 6 divisors (see below), whose sum is σ = 285715274. Its totient is φ = 131868576.

The previous prime is 197802841. The next prime is 197802883. The reversal of 197802873 is 378208791.

It can be written as a sum of positive squares in only one way, i.e., 142850304 + 54952569 = 11952^2 + 7413^2 .

It is not a de Polignac number, because 197802873 - 2⁵ = 197802841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197802833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10989040 + ... + 10989057.

Almost surely, 2^197802873 is an apocalyptic number.

It is an amenable number.

197802873 is a deficient number, since it is larger than the sum of its proper divisors (87912401).

197802873 is a wasteful number, since it uses less digits than its factorization.

197802873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21978103 (or 21978100 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 197802873 is about 14064.2409322366. The cubic root of 197802873 is about 582.6541781519.

The spelling of 197802873 in words is "one hundred ninety-seven million, eight hundred two thousand, eight hundred seventy-three".