93221 has 4 divisors (see below), whose sum is σ = 94572. Its totient is φ = 91872.

The previous prime is 93199. The next prime is 93229. The reversal of 93221 is 12239.

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 57121 + 36100 = 239^2 + 190^2 .

It is a cyclic number.

It is not a de Polignac number, because 93221 - 2¹⁴ = 76837 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

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 93221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93229) 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, 566 + ... + 711.

It is an arithmetic number, because the mean of its divisors is an integer number (23643).

2⁹³²²¹ is an apocalyptic number.

It is an amenable number.

93221 is a deficient number, since it is larger than the sum of its proper divisors (1351).

93221 is a wasteful number, since it uses less digits than its factorization.

93221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350.

The product of its digits is 108, while the sum is 17.

The square root of 93221 is about 305.3211424058. The cubic root of 93221 is about 45.3424085541.

The spelling of 93221 in words is "ninety-three thousand, two hundred twenty-one".