876321 has 6 divisors (see below), whose sum is σ = 1265810.
Its totient is φ = 584208.
The previous prime is 876311. The next prime is 876329. The reversal of 876321 is 123678.
Adding to 876321 its reverse (123678), we get a palindrome (999999).
It can be written as a sum of positive squares in only one way, i.e., 876096 + 225 = 936^2 + 15^2
It is not a de Polignac number, because 876321 - 26 = 876257 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is a Duffinian number.
It is a Curzon number.
It is a nialpdrome in base 10.
It is not an unprimeable number, because it can be changed into a prime (876329) 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 5 ways as a sum of consecutive naturals, for example, 48676 + ... + 48693.
2876321 is an apocalyptic number.
It is an amenable number.
876321 is a deficient number, since it is larger than the sum of its proper divisors (389489).
876321 is a wasteful number, since it uses less digits than its factorization.
876321 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 97375 (or 97372 counting only the distinct ones).
The product of its digits is 2016, while the sum is 27.
The square root of 876321 is about 936.1201845917.
The cubic root of 876321 is about 95.6946679288.
The spelling of 876321 in words is "eight hundred seventy-six thousand, three hundred twenty-one".