197646 has 8 divisors (see below), whose sum is σ = 395304. Its totient is φ = 65880.

The previous prime is 197641. The next prime is 197647. The reversal of 197646 is 646791.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

197646 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197641) 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, 16465 + ... + 16476.

It is an arithmetic number, because the mean of its divisors is an integer number (49413).

2¹⁹⁷⁶⁴⁶ is an apocalyptic number.

197646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197646 is a wasteful number, since it uses less digits than its factorization.

197646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32946.

The product of its digits is 9072, while the sum is 33.

The square root of 197646 is about 444.5739533531. The cubic root of 197646 is about 58.2500107450.

The spelling of 197646 in words is "one hundred ninety-seven thousand, six hundred forty-six".