196459797 has 4 divisors (see below), whose sum is σ = 261946400. Its totient is φ = 130973196.

The previous prime is 196459777. The next prime is 196459873. The reversal of 196459797 is 797954691.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 196459797 - 2⁸ = 196459541 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 (196459727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32743297 + ... + 32743302.

It is an arithmetic number, because the mean of its divisors is an integer number (65486600).

Almost surely, 2^196459797 is an apocalyptic number.

It is an amenable number.

196459797 is a deficient number, since it is larger than the sum of its proper divisors (65486603).

196459797 is an equidigital number, since it uses as much as digits as its factorization.

196459797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65486602.

The product of its digits is 4286520, while the sum is 57.

The square root of 196459797 is about 14016.4117020013. The cubic root of 196459797 is about 581.3324469012.

The spelling of 196459797 in words is "one hundred ninety-six million, four hundred fifty-nine thousand, seven hundred ninety-seven".