197875907 has 2 divisors, whose sum is σ = 197875908. Its totient is φ = 197875906.

The previous prime is 197875859. The next prime is 197875913. The reversal of 197875907 is 709578791.

It is a strong prime.

It is an emirp because it is prime and its reverse (709578791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 197875907 - 2²⁰ = 196827331 is a prime.

It is not a weakly prime, because it can be changed into another prime (197875967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98937953 + 98937954.

It is an arithmetic number, because the mean of its divisors is an integer number (98937954).

Almost surely, 2^197875907 is an apocalyptic number.

197875907 is a deficient number, since it is larger than the sum of its proper divisors (1).

197875907 is an equidigital number, since it uses as much as digits as its factorization.

197875907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1111320, while the sum is 53.

The square root of 197875907 is about 14066.8371356179. The cubic root of 197875907 is about 582.7258797209.

The spelling of 197875907 in words is "one hundred ninety-seven million, eight hundred seventy-five thousand, nine hundred seven".