804869 has 8 divisors (see below), whose sum is σ = 876792. Its totient is φ = 734400.

The previous prime is 804857. The next prime is 804877. The reversal of 804869 is 968408.

It can be written as a sum of positive squares in 4 ways, for example, as 12769 + 792100 = 113^2 + 890^2 .

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 804869 - 2⁸ = 804613 is a prime.

It is a super-2 number, since 2×804869² = 1295628214322, which contains 22 as substring.

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 (804829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1007 + ... + 1619.

It is an arithmetic number, because the mean of its divisors is an integer number (109599).

2⁸⁰⁴⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

804869 is a deficient number, since it is larger than the sum of its proper divisors (71923).

804869 is a wasteful number, since it uses less digits than its factorization.

804869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 804869 is about 897.1449158302. The cubic root of 804869 is about 93.0197283464.

The spelling of 804869 in words is "eight hundred four thousand, eight hundred sixty-nine".