196343691 has 8 divisors (see below), whose sum is σ = 261856320. Its totient is φ = 130863432.

The previous prime is 196343687. The next prime is 196343699.

196343691 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 196343691 - 2² = 196343687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196343699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19780 + ... + 27998.

It is an arithmetic number, because the mean of its divisors is an integer number (32732040).

Almost surely, 2^196343691 is an apocalyptic number.

196343691 is a deficient number, since it is larger than the sum of its proper divisors (65512629).

196343691 is an equidigital number, since it uses as much as digits as its factorization.

196343691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16185.

The product of its digits is 104976, while the sum is 42.

The square root of 196343691 is about 14012.2693022936. The cubic root of 196343691 is about 581.2179035578.

It can be divided in two parts, 1963 and 43691, that added together give a palindrome (45654).

The spelling of 196343691 in words is "one hundred ninety-six million, three hundred forty-three thousand, six hundred ninety-one".