197908063 has 2 divisors, whose sum is σ = 197908064. Its totient is φ = 197908062.

The previous prime is 197908049. The next prime is 197908069. The reversal of 197908063 is 360809791.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197908063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197908069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98954031 + 98954032.

It is an arithmetic number, because the mean of its divisors is an integer number (98954032).

Almost surely, 2^197908063 is an apocalyptic number.

197908063 is a deficient number, since it is larger than the sum of its proper divisors (1).

197908063 is an equidigital number, since it uses as much as digits as its factorization.

197908063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 197908063 is about 14067.9800611175. The cubic root of 197908063 is about 582.7574434734.

The spelling of 197908063 in words is "one hundred ninety-seven million, nine hundred eight thousand, sixty-three".