983221 has 4 divisors (see below), whose sum is σ = 1007244. Its totient is φ = 959200.

The previous prime is 983209. The next prime is 983233. The reversal of 983221 is 122389.

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

It is an interprime number because it is at equal distance from previous prime (983209) and next prime (983233).

It can be written as a sum of positive squares in 2 ways, for example, as 12996 + 970225 = 114^2 + 985^2 .

It is a cyclic number.

It is not a de Polignac number, because 983221 - 2⁵ = 983189 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 (983261) 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, 11950 + ... + 12031.

It is an arithmetic number, because the mean of its divisors is an integer number (251811).

2⁹⁸³²²¹ is an apocalyptic number.

It is an amenable number.

983221 is a deficient number, since it is larger than the sum of its proper divisors (24023).

983221 is a wasteful number, since it uses less digits than its factorization.

983221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24022.

The product of its digits is 864, while the sum is 25.

The square root of 983221 is about 991.5750097698. The cubic root of 983221 is about 99.4375423451.

The spelling of 983221 in words is "nine hundred eighty-three thousand, two hundred twenty-one".