3198645 has 12 divisors (see below), whose sum is σ = 5544396. Its totient is φ = 1705920.

The previous prime is 3198619. The next prime is 3198649. The reversal of 3198645 is 5468913.

3198645 is a `hidden beast` number, since 3 + 1 + 9 + 8 + 645 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1912689 + 1285956 = 1383^2 + 1134^2 .

It is not a de Polignac number, because 3198645 - 2⁶ = 3198581 is a prime.

It is a Curzon number.

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35496 + ... + 35585.

It is an arithmetic number, because the mean of its divisors is an integer number (462033).

Almost surely, 2^3198645 is an apocalyptic number.

It is an amenable number.

3198645 is a deficient number, since it is larger than the sum of its proper divisors (2345751).

3198645 is a wasteful number, since it uses less digits than its factorization.

3198645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71092 (or 71089 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 3198645 is about 1788.4756078851. The cubic root of 3198645 is about 147.3404575813.

The spelling of 3198645 in words is "three million, one hundred ninety-eight thousand, six hundred forty-five".