985321 has 4 divisors (see below), whose sum is σ = 1037200. Its totient is φ = 933444.

The previous prime is 985307. The next prime is 985331. The reversal of 985321 is 123589.

985321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 123589 = 73 ⋅1693.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-985321 is a prime.

It is a Duffinian number.

985321 is a lucky number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 985321.

It is not an unprimeable number, because it can be changed into a prime (985301) 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, 25911 + ... + 25948.

It is an arithmetic number, because the mean of its divisors is an integer number (259300).

2⁹⁸⁵³²¹ is an apocalyptic number.

It is an amenable number.

985321 is a deficient number, since it is larger than the sum of its proper divisors (51879).

985321 is a wasteful number, since it uses less digits than its factorization.

985321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51878.

The product of its digits is 2160, while the sum is 28.

The square root of 985321 is about 992.6333663544. The cubic root of 985321 is about 99.5082861377.

The spelling of 985321 in words is "nine hundred eighty-five thousand, three hundred twenty-one".