197908 has 6 divisors (see below), whose sum is σ = 346346. Its totient is φ = 98952.

The previous prime is 197893. The next prime is 197909. The reversal of 197908 is 809791.

It can be written as a sum of positive squares in only one way, i.e., 145924 + 51984 = 382^2 + 228^2 .

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24735 + ... + 24742.

2¹⁹⁷⁹⁰⁸ is an apocalyptic number.

It is an amenable number.

197908 is a deficient number, since it is larger than the sum of its proper divisors (148438).

197908 is a wasteful number, since it uses less digits than its factorization.

197908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49481 (or 49479 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 197908 is about 444.8685199022. The cubic root of 197908 is about 58.2757381637.

The spelling of 197908 in words is "one hundred ninety-seven thousand, nine hundred eight".