196393 has 4 divisors (see below), whose sum is σ = 197380. Its totient is φ = 195408.

The previous prime is 196387. The next prime is 196429. The reversal of 196393 is 393691.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 393691 = 23 ⋅17117.

It can be written as a sum of positive squares in 2 ways, for example, as 29929 + 166464 = 173^2 + 408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196303) 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, 78 + ... + 631.

It is an arithmetic number, because the mean of its divisors is an integer number (49345).

2¹⁹⁶³⁹³ is an apocalyptic number.

It is an amenable number.

196393 is a deficient number, since it is larger than the sum of its proper divisors (987).

196393 is an equidigital number, since it uses as much as digits as its factorization.

196393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986.

The product of its digits is 4374, while the sum is 31.

The square root of 196393 is about 443.1624984134. The cubic root of 196393 is about 58.1266554429.

It can be divided in two parts, 196 and 393, that multiplied together give a triangular number (77028 = T₃₉₂).

The spelling of 196393 in words is "one hundred ninety-six thousand, three hundred ninety-three".