196641 has 8 divisors (see below), whose sum is σ = 291360. Its totient is φ = 131076.

The previous prime is 196613. The next prime is 196643. The reversal of 196641 is 146691.

196641 is a `hidden beast` number, since 19 + 6 + 641 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-196641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 7283 = 196641 / (1 + 9 + 6 + 6 + 4 + 1).

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3615 + ... + 3668.

It is an arithmetic number, because the mean of its divisors is an integer number (36420).

2¹⁹⁶⁶⁴¹ is an apocalyptic number.

It is an amenable number.

196641 is a deficient number, since it is larger than the sum of its proper divisors (94719).

196641 is an equidigital number, since it uses as much as digits as its factorization.

196641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7292 (or 7286 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 196641 is about 443.4422172054. The cubic root of 196641 is about 58.1511120970.

The spelling of 196641 in words is "one hundred ninety-six thousand, six hundred forty-one".