196487197 has 2 divisors, whose sum is σ = 196487198. Its totient is φ = 196487196.

The previous prime is 196487191. The next prime is 196487219. The reversal of 196487197 is 791784691.

196487197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111957561 + 84529636 = 10581^2 + 9194^2 .

It is an emirp because it is prime and its reverse (791784691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196487197 - 2⁷ = 196487069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196487191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98243598 + 98243599.

It is an arithmetic number, because the mean of its divisors is an integer number (98243599).

Almost surely, 2^196487197 is an apocalyptic number.

It is an amenable number.

196487197 is a deficient number, since it is larger than the sum of its proper divisors (1).

196487197 is an equidigital number, since it uses as much as digits as its factorization.

196487197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 52.

The square root of 196487197 is about 14017.3890935509. The cubic root of 196487197 is about 581.3594715458.

The spelling of 196487197 in words is "one hundred ninety-six million, four hundred eighty-seven thousand, one hundred ninety-seven".