197938 has 16 divisors (see below), whose sum is σ = 334656. Its totient is φ = 87120.

The previous prime is 197933. The next prime is 197947. The reversal of 197938 is 839791.

197938 is nontrivially palindromic in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 197897 and 197906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197933) 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, 433 + ... + 763.

It is an arithmetic number, because the mean of its divisors is an integer number (20916).

2¹⁹⁷⁹³⁸ is an apocalyptic number.

197938 is a deficient number, since it is larger than the sum of its proper divisors (136718).

197938 is a wasteful number, since it uses less digits than its factorization.

197938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369.

The product of its digits is 13608, while the sum is 37.

The square root of 197938 is about 444.9022364520. The cubic root of 197938 is about 58.2786826022.

The spelling of 197938 in words is "one hundred ninety-seven thousand, nine hundred thirty-eight".