2804201 has 4 divisors (see below), whose sum is σ = 2969172. Its totient is φ = 2639232.

The previous prime is 2804189. The next prime is 2804203. The reversal of 2804201 is 1024082.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1755625 + 1048576 = 1325^2 + 1024^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2804201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 164953 = 2804201 / (2 + 8 + 0 + 4 + 2 + 0 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2804201.

It is not an unprimeable number, because it can be changed into a prime (2804203) 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, 82460 + ... + 82493.

It is an arithmetic number, because the mean of its divisors is an integer number (742293).

2^2804201 is an apocalyptic number.

It is an amenable number.

2804201 is a deficient number, since it is larger than the sum of its proper divisors (164971).

2804201 is a wasteful number, since it uses less digits than its factorization.

2804201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164970.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2804201 is about 1674.5748714226. The cubic root of 2804201 is about 141.0164291840.

Adding to 2804201 its reverse (1024082), we get a palindrome (3828283).

The spelling of 2804201 in words is "two million, eight hundred four thousand, two hundred one".