197822 has 4 divisors (see below), whose sum is σ = 296736. Its totient is φ = 98910.

The previous prime is 197807. The next prime is 197831. The reversal of 197822 is 228791.

It is a happy number.

197822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 228791 = 109 ⋅2099.

It is a plaindrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49454 + ... + 49457.

It is an arithmetic number, because the mean of its divisors is an integer number (74184).

2¹⁹⁷⁸²² is an apocalyptic number.

197822 is a deficient number, since it is larger than the sum of its proper divisors (98914).

197822 is an equidigital number, since it uses as much as digits as its factorization.

197822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98913.

The product of its digits is 2016, while the sum is 29.

The square root of 197822 is about 444.7718516273. The cubic root of 197822 is about 58.2672957905.

The spelling of 197822 in words is "one hundred ninety-seven thousand, eight hundred twenty-two".