3198647 has 4 divisors (see below), whose sum is σ = 3246456. Its totient is φ = 3150840.

The previous prime is 3198619. The next prime is 3198649. The reversal of 3198647 is 7468913.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7468913 = 151 ⋅49463.

It is a cyclic number.

It is not a de Polignac number, because 3198647 - 2¹² = 3194551 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 3198647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3198649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23804 + ... + 23937.

It is an arithmetic number, because the mean of its divisors is an integer number (811614).

Almost surely, 2^3198647 is an apocalyptic number.

3198647 is a deficient number, since it is larger than the sum of its proper divisors (47809).

3198647 is an equidigital number, since it uses as much as digits as its factorization.

3198647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47808.

The product of its digits is 36288, while the sum is 38.

The square root of 3198647 is about 1788.4761670204. The cubic root of 3198647 is about 147.3404882903.

The spelling of 3198647 in words is "three million, one hundred ninety-eight thousand, six hundred forty-seven".