196047823 has 4 divisors (see below), whose sum is σ = 196365160. Its totient is φ = 195730488.

The previous prime is 196047809. The next prime is 196047853. The reversal of 196047823 is 328740691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 328740691 = 1613 ⋅203807.

It is a cyclic number.

It is not a de Polignac number, because 196047823 - 2⁹ = 196047311 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 (196047853) 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, 157740 + ... + 158977.

It is an arithmetic number, because the mean of its divisors is an integer number (49091290).

Almost surely, 2^196047823 is an apocalyptic number.

196047823 is a deficient number, since it is larger than the sum of its proper divisors (317337).

196047823 is an equidigital number, since it uses as much as digits as its factorization.

196047823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317336.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 196047823 is about 14001.7078601148. The cubic root of 196047823 is about 580.9258133172.

The spelling of 196047823 in words is "one hundred ninety-six million, forty-seven thousand, eight hundred twenty-three".