196397 has 4 divisors (see below), whose sum is σ = 204960. Its totient is φ = 187836.

The previous prime is 196387. The next prime is 196429. The reversal of 196397 is 793691.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196397 is a prime.

It is a d-powerful number, because it can be written as 1 + 9 + 3⁹ + 6 + 9⁵ + 7⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4247 + ... + 4292.

It is an arithmetic number, because the mean of its divisors is an integer number (51240).

2¹⁹⁶³⁹⁷ is an apocalyptic number.

It is an amenable number.

196397 is a deficient number, since it is larger than the sum of its proper divisors (8563).

196397 is an equidigital number, since it uses as much as digits as its factorization.

196397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8562.

The product of its digits is 10206, while the sum is 35.

The square root of 196397 is about 443.1670114077. The cubic root of 196397 is about 58.1270500684.

The spelling of 196397 in words is "one hundred ninety-six thousand, three hundred ninety-seven".