197923 has 8 divisors (see below), whose sum is σ = 227520. Its totient is φ = 170280.

The previous prime is 197921. The next prime is 197927. The reversal of 197923 is 329791.

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

It is not a de Polignac number, because 197923 - 2¹ = 197921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265 + ... + 682.

It is an arithmetic number, because the mean of its divisors is an integer number (28440).

2¹⁹⁷⁹²³ is an apocalyptic number.

197923 is a deficient number, since it is larger than the sum of its proper divisors (29597).

197923 is a wasteful number, since it uses less digits than its factorization.

197923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977.

The product of its digits is 3402, while the sum is 31.

The square root of 197923 is about 444.8853784965. The cubic root of 197923 is about 58.2772104202.

It can be divided in two parts, 1979 and 23, that added together give a palindrome (2002).

The spelling of 197923 in words is "one hundred ninety-seven thousand, nine hundred twenty-three".