2804289 has 4 divisors (see below), whose sum is σ = 3739056. Its totient is φ = 1869524.

The previous prime is 2804273. The next prime is 2804293. The reversal of 2804289 is 9824082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2804289 - 2⁴ = 2804273 is a prime.

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2804209) 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, 467379 + ... + 467384.

It is an arithmetic number, because the mean of its divisors is an integer number (934764).

2^2804289 is an apocalyptic number.

It is an amenable number.

2804289 is a deficient number, since it is larger than the sum of its proper divisors (934767).

2804289 is an equidigital number, since it uses as much as digits as its factorization.

2804289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934766.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 2804289 is about 1674.6011465421. The cubic root of 2804289 is about 141.0179042703.

The spelling of 2804289 in words is "two million, eight hundred four thousand, two hundred eighty-nine".