804863 has 4 divisors (see below), whose sum is σ = 807720. Its totient is φ = 802008.

The previous prime is 804857. The next prime is 804877. The reversal of 804863 is 368408.

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

It is a cyclic number.

It is not a de Polignac number, because 804863 - 2⁴ = 804847 is a prime.

It is a magnanimous number.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 804863.

It is not an unprimeable number, because it can be changed into a prime (804803) 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, 953 + ... + 1586.

It is an arithmetic number, because the mean of its divisors is an integer number (201930).

2⁸⁰⁴⁸⁶³ is an apocalyptic number.

804863 is a deficient number, since it is larger than the sum of its proper divisors (2857).

804863 is a wasteful number, since it uses less digits than its factorization.

804863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2856.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 804863 is about 897.1415718826. The cubic root of 804863 is about 93.0194972033.

The spelling of 804863 in words is "eight hundred four thousand, eight hundred sixty-three".