196448647 has 4 divisors (see below), whose sum is σ = 196477120. Its totient is φ = 196420176.

The previous prime is 196448573. The next prime is 196448653. The reversal of 196448647 is 746844691.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 196448647 - 2¹⁹ = 195924359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 196448647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196448047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3379 + ... + 20107.

It is an arithmetic number, because the mean of its divisors is an integer number (49119280).

Almost surely, 2^196448647 is an apocalyptic number.

196448647 is a deficient number, since it is larger than the sum of its proper divisors (28473).

196448647 is a wasteful number, since it uses less digits than its factorization.

196448647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28472.

The product of its digits is 1161216, while the sum is 49.

The square root of 196448647 is about 14016.0139483378. The cubic root of 196448647 is about 581.3214489269.

The spelling of 196448647 in words is "one hundred ninety-six million, four hundred forty-eight thousand, six hundred forty-seven".