873321 has 4 divisors (see below), whose sum is σ = 1164432. Its totient is φ = 582212.

The previous prime is 873319. The next prime is 873331. The reversal of 873321 is 123378.

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 873321 - 2¹ = 873319 is a prime.

It is a D-number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 873291 and 873300.

It is not an unprimeable number, because it can be changed into a prime (873331) 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 3 ways as a sum of consecutive naturals, for example, 145551 + ... + 145556.

It is an arithmetic number, because the mean of its divisors is an integer number (291108).

2⁸⁷³³²¹ is an apocalyptic number.

It is an amenable number.

873321 is a deficient number, since it is larger than the sum of its proper divisors (291111).

873321 is a wasteful number, since it uses less digits than its factorization.

873321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291110.

The product of its digits is 1008, while the sum is 24.

The square root of 873321 is about 934.5164525036. The cubic root of 873321 is about 95.5853426056.

Adding to 873321 its reverse (123378), we get a palindrome (996699).

The spelling of 873321 in words is "eight hundred seventy-three thousand, three hundred twenty-one".