197066 has 4 divisors (see below), whose sum is σ = 295602. Its totient is φ = 98532.

The previous prime is 197063. The next prime is 197077. The reversal of 197066 is 660791.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 148225 + 48841 = 385^2 + 221^2 .

It is not an unprimeable number, because it can be changed into a prime (197063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49265 + ... + 49268.

2¹⁹⁷⁰⁶⁶ is an apocalyptic number.

197066 is a deficient number, since it is larger than the sum of its proper divisors (98536).

197066 is an equidigital number, since it uses as much as digits as its factorization.

197066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98535.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 197066 is about 443.9211641722. The cubic root of 197066 is about 58.1929759318.

The spelling of 197066 in words is "one hundred ninety-seven thousand, sixty-six".