887321 has 4 divisors (see below), whose sum is σ = 890292. Its totient is φ = 884352.

The previous prime is 887311. The next prime is 887323. The reversal of 887321 is 123788.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 190096 + 697225 = 436^2 + 835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-887321 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (887323) 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, 980 + ... + 1653.

It is an arithmetic number, because the mean of its divisors is an integer number (222573).

2⁸⁸⁷³²¹ is an apocalyptic number.

It is an amenable number.

887321 is a deficient number, since it is larger than the sum of its proper divisors (2971).

887321 is a wasteful number, since it uses less digits than its factorization.

887321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970.

The product of its digits is 2688, while the sum is 29.

The square root of 887321 is about 941.9771759443. The cubic root of 887321 is about 96.0934059057.

The spelling of 887321 in words is "eight hundred eighty-seven thousand, three hundred twenty-one".