196039843 has 4 divisors (see below), whose sum is σ = 198521440. Its totient is φ = 193558248.

The previous prime is 196039841. The next prime is 196039847. The reversal of 196039843 is 348930691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 348930691 = 109 ⋅3201199.

It is a cyclic number.

It is not a de Polignac number, because 196039843 - 2¹ = 196039841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 196039843.

It is not an unprimeable number, because it can be changed into a prime (196039841) 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, 1240680 + ... + 1240837.

It is an arithmetic number, because the mean of its divisors is an integer number (49630360).

Almost surely, 2^196039843 is an apocalyptic number.

196039843 is a deficient number, since it is larger than the sum of its proper divisors (2481597).

196039843 is an equidigital number, since it uses as much as digits as its factorization.

196039843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481596.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 196039843 is about 14001.4228919778. The cubic root of 196039843 is about 580.9179311403.

The spelling of 196039843 in words is "one hundred ninety-six million, thirty-nine thousand, eight hundred forty-three".