823453 has 8 divisors (see below), whose sum is σ = 861696. Its totient is φ = 786000.

The previous prime is 823451. The next prime is 823457. The reversal of 823453 is 354328.

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

It is a cyclic number.

It is not a de Polignac number, because 823453 - 2¹ = 823451 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3000 + ... + 3262.

It is an arithmetic number, because the mean of its divisors is an integer number (107712).

2⁸²³⁴⁵³ is an apocalyptic number.

It is an amenable number.

823453 is a deficient number, since it is larger than the sum of its proper divisors (38243).

823453 is a wasteful number, since it uses less digits than its factorization.

823453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395.

The product of its digits is 2880, while the sum is 25.

The square root of 823453 is about 907.4431111646. The cubic root of 823453 is about 93.7302133056.

The spelling of 823453 in words is "eight hundred twenty-three thousand, four hundred fifty-three".