196321 has 4 divisors (see below), whose sum is σ = 197892. Its totient is φ = 194752.

The previous prime is 196307. The next prime is 196331. The reversal of 196321 is 123691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123691 = 37 ⋅3343.

It can be written as a sum of positive squares in 2 ways, for example, as 140625 + 55696 = 375^2 + 236^2 .

It is a cyclic number.

It is not a de Polignac number, because 196321 - 2⁷ = 196193 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 196292 and 196301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196331) 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, 580 + ... + 853.

It is an arithmetic number, because the mean of its divisors is an integer number (49473).

2¹⁹⁶³²¹ is an apocalyptic number.

It is an amenable number.

196321 is a deficient number, since it is larger than the sum of its proper divisors (1571).

196321 is a wasteful number, since it uses less digits than its factorization.

196321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570.

The product of its digits is 324, while the sum is 22.

The square root of 196321 is about 443.0812566562. The cubic root of 196321 is about 58.1195512679.

The spelling of 196321 in words is "one hundred ninety-six thousand, three hundred twenty-one".