197907 has 8 divisors (see below), whose sum is σ = 270480. Its totient is φ = 128640.

The previous prime is 197893. The next prime is 197909. The reversal of 197907 is 709791.

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

It is not a de Polignac number, because 197907 - 2⁴ = 197891 is a prime.

It is a nialpdrome in base 12.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 197907.

It is not an unprimeable number, because it can be changed into a prime (197909) 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, 682 + ... + 927.

It is an arithmetic number, because the mean of its divisors is an integer number (33810).

2¹⁹⁷⁹⁰⁷ is an apocalyptic number.

197907 is a deficient number, since it is larger than the sum of its proper divisors (72573).

197907 is a wasteful number, since it uses less digits than its factorization.

197907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653.

The product of its (nonzero) digits is 3969, while the sum is 33.

The square root of 197907 is about 444.8673959732. The cubic root of 197907 is about 58.2756400106.

The spelling of 197907 in words is "one hundred ninety-seven thousand, nine hundred seven".