815323 has 8 divisors (see below), whose sum is σ = 849728. Its totient is φ = 781704.

The previous prime is 815317. The next prime is 815333. The reversal of 815323 is 323518.

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 815323 - 2⁵ = 815291 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 815294 and 815303.

It is not an unprimeable number, because it can be changed into a prime (815333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2740 + ... + 3022.

It is an arithmetic number, because the mean of its divisors is an integer number (106216).

2⁸¹⁵³²³ is an apocalyptic number.

815323 is a deficient number, since it is larger than the sum of its proper divisors (34405).

815323 is a wasteful number, since it uses less digits than its factorization.

815323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393.

The product of its digits is 720, while the sum is 22.

The square root of 815323 is about 902.9523796967. The cubic root of 815323 is about 93.4207245529.

The spelling of 815323 in words is "eight hundred fifteen thousand, three hundred twenty-three".