197169938 has 48 divisors (see below), whose sum is σ = 358874880. Its totient is φ = 79567488.

The previous prime is 197169937. The next prime is 197169953. The reversal of 197169938 is 839961791.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 197169938.

It is not an unprimeable number, because it can be changed into a prime (197169937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 584906 + ... + 585242.

It is an arithmetic number, because the mean of its divisors is an integer number (7476560).

Almost surely, 2^197169938 is an apocalyptic number.

197169938 is a deficient number, since it is larger than the sum of its proper divisors (161704942).

197169938 is a wasteful number, since it uses less digits than its factorization.

197169938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 448 counting only the distinct ones).

The product of its digits is 734832, while the sum is 53.

The square root of 197169938 is about 14041.7213332269. The cubic root of 197169938 is about 582.0320498956.

The spelling of 197169938 in words is "one hundred ninety-seven million, one hundred sixty-nine thousand, nine hundred thirty-eight".