196423 has 4 divisors (see below), whose sum is σ = 198720. Its totient is φ = 194128.

The previous prime is 196387. The next prime is 196429. The reversal of 196423 is 324691.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196429) 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, 1015 + ... + 1192.

It is an arithmetic number, because the mean of its divisors is an integer number (49680).

2¹⁹⁶⁴²³ is an apocalyptic number.

196423 is a deficient number, since it is larger than the sum of its proper divisors (2297).

196423 is an equidigital number, since it uses as much as digits as its factorization.

196423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2296.

The product of its digits is 1296, while the sum is 25.

The square root of 196423 is about 443.1963447503. The cubic root of 196423 is about 58.1296150034.

The spelling of 196423 in words is "one hundred ninety-six thousand, four hundred twenty-three".