196871297 has 32 divisors (see below), whose sum is σ = 240844800. Its totient is φ = 157386240.

The previous prime is 196871273. The next prime is 196871303. The reversal of 196871297 is 792178691.

It is a cyclic number.

It is not a de Polignac number, because 196871297 - 2⁸ = 196871041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196871797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 989204 + ... + 989402.

It is an arithmetic number, because the mean of its divisors is an integer number (7526400).

Almost surely, 2^196871297 is an apocalyptic number.

It is an amenable number.

196871297 is a deficient number, since it is larger than the sum of its proper divisors (43973503).

196871297 is a wasteful number, since it uses less digits than its factorization.

196871297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381.

The product of its digits is 381024, while the sum is 50.

The square root of 196871297 is about 14031.0832439979. The cubic root of 196871297 is about 581.7380455348.

The spelling of 196871297 in words is "one hundred ninety-six million, eight hundred seventy-one thousand, two hundred ninety-seven".