196717247 has 2 divisors, whose sum is σ = 196717248. Its totient is φ = 196717246.

The previous prime is 196717223. The next prime is 196717259. The reversal of 196717247 is 742717691.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 196717247 - 2²⁶ = 129608383 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 196717198 and 196717207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196717207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98358623 + 98358624.

It is an arithmetic number, because the mean of its divisors is an integer number (98358624).

Almost surely, 2^196717247 is an apocalyptic number.

196717247 is a deficient number, since it is larger than the sum of its proper divisors (1).

196717247 is an equidigital number, since it uses as much as digits as its factorization.

196717247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 148176, while the sum is 44.

The square root of 196717247 is about 14025.5925721518. The cubic root of 196717247 is about 581.5862710300.

The spelling of 196717247 in words is "one hundred ninety-six million, seven hundred seventeen thousand, two hundred forty-seven".