4198565 has 12 divisors (see below), whose sum is σ = 5861196. Its totient is φ = 2878848.

The previous prime is 4198553. The next prime is 4198567. The reversal of 4198565 is 5658914.

It can be written as a sum of positive squares in 2 ways, for example, as 519841 + 3678724 = 721^2 + 1918^2 .

It is not a de Polignac number, because 4198565 - 2⁴ = 4198549 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4198567) 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, 8324 + ... + 8813.

It is an arithmetic number, because the mean of its divisors is an integer number (488433).

Almost surely, 2^4198565 is an apocalyptic number.

It is an amenable number.

4198565 is a deficient number, since it is larger than the sum of its proper divisors (1662631).

4198565 is a wasteful number, since it uses less digits than its factorization.

4198565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17156 (or 17149 counting only the distinct ones).

The product of its digits is 43200, while the sum is 38.

The square root of 4198565 is about 2049.0400191309. The cubic root of 4198565 is about 161.3244873498.

The spelling of 4198565 in words is "four million, one hundred ninety-eight thousand, five hundred sixty-five".