197205873 has 4 divisors (see below), whose sum is σ = 262941168. Its totient is φ = 131470580.

The previous prime is 197205871. The next prime is 197205881. The reversal of 197205873 is 378502791.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 197205873 - 2¹ = 197205871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (197205871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32867643 + ... + 32867648.

It is an arithmetic number, because the mean of its divisors is an integer number (65735292).

Almost surely, 2^197205873 is an apocalyptic number.

It is an amenable number.

197205873 is a deficient number, since it is larger than the sum of its proper divisors (65735295).

197205873 is an equidigital number, since it uses as much as digits as its factorization.

197205873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65735294.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 197205873 is about 14043.0008545182. Note that the first 3 decimals coincide. The cubic root of 197205873 is about 582.0674069610.

The spelling of 197205873 in words is "one hundred ninety-seven million, two hundred five thousand, eight hundred seventy-three".