197893207 has 2 divisors, whose sum is σ = 197893208. Its totient is φ = 197893206.

The previous prime is 197893177. The next prime is 197893229. The reversal of 197893207 is 702398791.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197893207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197893237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98946603 + 98946604.

It is an arithmetic number, because the mean of its divisors is an integer number (98946604).

Almost surely, 2^197893207 is an apocalyptic number.

197893207 is a deficient number, since it is larger than the sum of its proper divisors (1).

197893207 is an equidigital number, since it uses as much as digits as its factorization.

197893207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 197893207 is about 14067.4520436360. The cubic root of 197893207 is about 582.7428615153.

The spelling of 197893207 in words is "one hundred ninety-seven million, eight hundred ninety-three thousand, two hundred seven".