804287 has 18 divisors (see below), whose sum is σ = 979944. Its totient is φ = 658240.

The previous prime is 804283. The next prime is 804313. The reversal of 804287 is 782408.

It is not a de Polignac number, because 804287 - 2² = 804283 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 (804281) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 34958 + ... + 34980.

2⁸⁰⁴²⁸⁷ is an apocalyptic number.

804287 is a deficient number, since it is larger than the sum of its proper divisors (175657).

804287 is a wasteful number, since it uses less digits than its factorization.

804287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 804287 is about 896.8204948595. The cubic root of 804287 is about 92.9973021147.

The spelling of 804287 in words is "eight hundred four thousand, two hundred eighty-seven".