802823 has 4 divisors (see below), whose sum is σ = 917520. Its totient is φ = 688128.

The previous prime is 802811. The next prime is 802829. The reversal of 802823 is 328208.

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

It is not a de Polignac number, because 802823 - 2⁶ = 802759 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 (802829) 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, 57338 + ... + 57351.

It is an arithmetic number, because the mean of its divisors is an integer number (229380).

2⁸⁰²⁸²³ is an apocalyptic number.

802823 is a deficient number, since it is larger than the sum of its proper divisors (114697).

802823 is a wasteful number, since it uses less digits than its factorization.

802823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114696.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 802823 is about 896.0039062415. The cubic root of 802823 is about 92.9408418621.

The spelling of 802823 in words is "eight hundred two thousand, eight hundred twenty-three".