196974647 has 4 divisors (see below), whose sum is σ = 197026440. Its totient is φ = 196922856.

The previous prime is 196974629. The next prime is 196974667. The reversal of 196974647 is 746479691.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 196974647 - 2¹⁴ = 196958263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196974667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19697 + ... + 27962.

It is an arithmetic number, because the mean of its divisors is an integer number (49256610).

Almost surely, 2^196974647 is an apocalyptic number.

196974647 is a deficient number, since it is larger than the sum of its proper divisors (51793).

196974647 is an equidigital number, since it uses as much as digits as its factorization.

196974647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51792.

The product of its digits is 2286144, while the sum is 53.

The square root of 196974647 is about 14034.7656553289. The cubic root of 196974647 is about 581.8398245656.

The spelling of 196974647 in words is "one hundred ninety-six million, nine hundred seventy-four thousand, six hundred forty-seven".