196789697 has 4 divisors (see below), whose sum is σ = 211927380. Its totient is φ = 181652016.

The previous prime is 196789687. The next prime is 196789699. The reversal of 196789697 is 796987691.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 796987691 = 2003 ⋅397897.

It can be written as a sum of positive squares in 2 ways, for example, as 128165041 + 68624656 = 11321^2 + 8284^2 .

It is not a de Polignac number, because 196789697 - 2¹⁰ = 196788673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196789699) 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, 7568822 + ... + 7568847.

It is an arithmetic number, because the mean of its divisors is an integer number (52981845).

Almost surely, 2^196789697 is an apocalyptic number.

It is an amenable number.

196789697 is a deficient number, since it is larger than the sum of its proper divisors (15137683).

196789697 is a wasteful number, since it uses less digits than its factorization.

196789697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15137682.

The product of its digits is 10287648, while the sum is 62.

The square root of 196789697 is about 14028.1751129646. The cubic root of 196789697 is about 581.6576607263.

The spelling of 196789697 in words is "one hundred ninety-six million, seven hundred eighty-nine thousand, six hundred ninety-seven".