823253 has 4 divisors (see below), whose sum is σ = 825708. Its totient is φ = 820800.

The previous prime is 823243. The next prime is 823261. The reversal of 823253 is 352328.

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

It can be written as a sum of positive squares in 2 ways, for example, as 677329 + 145924 = 823^2 + 382^2 .

It is a cyclic number.

It is not a de Polignac number, because 823253 - 2⁴ = 823237 is a prime.

It is a d-powerful number, because it can be written as 8⁶ + 2¹⁴ + 2¹⁹ + 3⁶ + 5² + 3⁹ .

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 626 + ... + 1427.

It is an arithmetic number, because the mean of its divisors is an integer number (206427).

2⁸²³²⁵³ is an apocalyptic number.

It is an amenable number.

823253 is a deficient number, since it is larger than the sum of its proper divisors (2455).

823253 is a wasteful number, since it uses less digits than its factorization.

823253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2454.

The product of its digits is 1440, while the sum is 23.

The square root of 823253 is about 907.3329047268. The cubic root of 823253 is about 93.7226243032.

It can be divided in two parts, 82325 and 3, that added together give a palindrome (82328).

The spelling of 823253 in words is "eight hundred twenty-three thousand, two hundred fifty-three".