823353 has 4 divisors (see below), whose sum is σ = 1097808. Its totient is φ = 548900.

The previous prime is 823351. The next prime is 823357. The reversal of 823353 is 353328.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 823353 - 2¹ = 823351 is a prime.

It is a D-number.

823353 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (823351) 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, 137223 + ... + 137228.

It is an arithmetic number, because the mean of its divisors is an integer number (274452).

2⁸²³³⁵³ is an apocalyptic number.

It is an amenable number.

823353 is a deficient number, since it is larger than the sum of its proper divisors (274455).

823353 is a wasteful number, since it uses less digits than its factorization.

823353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274454.

The product of its digits is 2160, while the sum is 24.

The square root of 823353 is about 907.3880096188. The cubic root of 823353 is about 93.7264189580.

It can be divided in two parts, 823 and 353, that added together give a triangular number (1176 = T₄₈).

The spelling of 823353 in words is "eight hundred twenty-three thousand, three hundred fifty-three".