875321 has 4 divisors (see below), whose sum is σ = 877200. Its totient is φ = 873444.

The previous prime is 875317. The next prime is 875323. The reversal of 875321 is 123578.

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 875321 - 2² = 875317 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (875323) 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, 350 + ... + 1368.

It is an arithmetic number, because the mean of its divisors is an integer number (219300).

2⁸⁷⁵³²¹ is an apocalyptic number.

It is an amenable number.

875321 is a deficient number, since it is larger than the sum of its proper divisors (1879).

875321 is a wasteful number, since it uses less digits than its factorization.

875321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878.

The product of its digits is 1680, while the sum is 26.

The square root of 875321 is about 935.5859126772. The cubic root of 875321 is about 95.6582539164.

Adding to 875321 its reverse (123578), we get a palindrome (998899).

It can be divided in two parts, 875 and 321, that multiplied together give a triangular number (280875 = T₇₄₉).

The spelling of 875321 in words is "eight hundred seventy-five thousand, three hundred twenty-one".