194397 has 8 divisors (see below), whose sum is σ = 296256. Its totient is φ = 111072.

The previous prime is 194377. The next prime is 194413. The reversal of 194397 is 793491.

194397 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 194397 - 2⁷ = 194269 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

194397 is strictly pandigital in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194377) 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 7 ways as a sum of consecutive naturals, for example, 4608 + ... + 4649.

It is an arithmetic number, because the mean of its divisors is an integer number (37032).

194397 is a Friedman number, since it can be written as 9*9*(7^4-1)-3, using all its digits and the basic arithmetic operations.

2¹⁹⁴³⁹⁷ is an apocalyptic number.

It is an amenable number.

194397 is a deficient number, since it is larger than the sum of its proper divisors (101859).

194397 is an equidigital number, since it uses as much as digits as its factorization.

194397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9267.

The product of its digits is 6804, while the sum is 33.

The square root of 194397 is about 440.9047516188. The cubic root of 194397 is about 57.9290650843.

The spelling of 194397 in words is "one hundred ninety-four thousand, three hundred ninety-seven".