802805 has 8 divisors (see below), whose sum is σ = 968352. Its totient is φ = 638928.

The previous prime is 802799. The next prime is 802811. The reversal of 802805 is 508208.

It is an interprime number because it is at equal distance from previous prime (802799) and next prime (802811).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-802805 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1274 + ... + 1796.

It is an arithmetic number, because the mean of its divisors is an integer number (121044).

2⁸⁰²⁸⁰⁵ is an apocalyptic number.

It is an amenable number.

802805 is a deficient number, since it is larger than the sum of its proper divisors (165547).

802805 is a wasteful number, since it uses less digits than its factorization.

802805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 802805 is about 895.9938615861. The cubic root of 802805 is about 92.9401472516.

The spelling of 802805 in words is "eight hundred two thousand, eight hundred five".