196403 has 4 divisors (see below), whose sum is σ = 206760. Its totient is φ = 186048.

The previous prime is 196387. The next prime is 196429. The reversal of 196403 is 304691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304691 = 17 ⋅17923.

It is not a de Polignac number, because 196403 - 2⁴ = 196387 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5150 + ... + 5187.

It is an arithmetic number, because the mean of its divisors is an integer number (51690).

2¹⁹⁶⁴⁰³ is an apocalyptic number.

196403 is a deficient number, since it is larger than the sum of its proper divisors (10357).

196403 is a wasteful number, since it uses less digits than its factorization.

196403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10356.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 196403 is about 443.1737808129. The cubic root of 196403 is about 58.1276419965.

The spelling of 196403 in words is "one hundred ninety-six thousand, four hundred three".