2804287 has 8 divisors (see below), whose sum is σ = 2875392. Its totient is φ = 2734200.

The previous prime is 2804273. The next prime is 2804293. The reversal of 2804287 is 7824082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2804287 - 2¹⁵ = 2771519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2804227) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8862 + ... + 9172.

It is an arithmetic number, because the mean of its divisors is an integer number (359424).

2^2804287 is an apocalyptic number.

2804287 is a deficient number, since it is larger than the sum of its proper divisors (71105).

2804287 is a wasteful number, since it uses less digits than its factorization.

2804287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509.

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 2804287 is about 1674.6005493848. The cubic root of 2804287 is about 141.0178707460.

The spelling of 2804287 in words is "two million, eight hundred four thousand, two hundred eighty-seven".