823293 has 12 divisors (see below), whose sum is σ = 1259388. Its totient is φ = 516480.

The previous prime is 823283. The next prime is 823309. The reversal of 823293 is 392328.

It can be written as a sum of positive squares in 2 ways, for example, as 459684 + 363609 = 678^2 + 603^2 .

It is not a de Polignac number, because 823293 - 2⁵ = 823261 is a prime.

It is a super-2 number, since 2×823293² = 1355622727698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2538 + ... + 2843.

It is an arithmetic number, because the mean of its divisors is an integer number (104949).

2⁸²³²⁹³ is an apocalyptic number.

It is an amenable number.

823293 is a deficient number, since it is larger than the sum of its proper divisors (436095).

823293 is a wasteful number, since it uses less digits than its factorization.

823293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404 (or 5401 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 823293 is about 907.3549470852. The cubic root of 823293 is about 93.7241422020.

It can be divided in two parts, 82 and 3293, that added together give a cube (3375 = 15³).

The spelling of 823293 in words is "eight hundred twenty-three thousand, two hundred ninety-three".