196646 has 4 divisors (see below), whose sum is σ = 294972. Its totient is φ = 98322.

The previous prime is 196643. The next prime is 196657. The reversal of 196646 is 646691.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49160 + ... + 49163.

It is an arithmetic number, because the mean of its divisors is an integer number (73743).

2¹⁹⁶⁶⁴⁶ is an apocalyptic number.

196646 is a deficient number, since it is larger than the sum of its proper divisors (98326).

196646 is an equidigital number, since it uses as much as digits as its factorization.

196646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98325.

The product of its digits is 7776, while the sum is 32.

The square root of 196646 is about 443.4478548826. The cubic root of 196646 is about 58.1516049632.

The spelling of 196646 in words is "one hundred ninety-six thousand, six hundred forty-six".