3198445 has 4 divisors (see below), whose sum is σ = 3838140. Its totient is φ = 2558752.

The previous prime is 3198427. The next prime is 3198463. The reversal of 3198445 is 5448913.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5448913 = 317 ⋅17189.

It is an interprime number because it is at equal distance from previous prime (3198427) and next prime (3198463).

It can be written as a sum of positive squares in 2 ways, for example, as 1313316 + 1885129 = 1146^2 + 1373^2 .

It is a cyclic number.

It is not a de Polignac number, because 3198445 - 2¹¹ = 3196397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3198445.

It is a congruent number.

It is an unprimeable number.

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, 319840 + ... + 319849.

It is an arithmetic number, because the mean of its divisors is an integer number (959535).

Almost surely, 2^3198445 is an apocalyptic number.

It is an amenable number.

3198445 is a deficient number, since it is larger than the sum of its proper divisors (639695).

3198445 is an equidigital number, since it uses as much as digits as its factorization.

3198445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639694.

The product of its digits is 17280, while the sum is 34.

The square root of 3198445 is about 1788.4196934724. The cubic root of 3198445 is about 147.3373866241.

The spelling of 3198445 in words is "three million, one hundred ninety-eight thousand, four hundred forty-five".