195930773 has 2 divisors, whose sum is σ = 195930774. Its totient is φ = 195930772.

The previous prime is 195930769. The next prime is 195930817. The reversal of 195930773 is 377039591.

It is an a-pointer prime, because the next prime (195930817) can be obtained adding 195930773 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174187204 + 21743569 = 13198^2 + 4663^2 .

It is a cyclic number.

It is not a de Polignac number, because 195930773 - 2² = 195930769 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195930703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97965386 + 97965387.

It is an arithmetic number, because the mean of its divisors is an integer number (97965387).

Almost surely, 2^195930773 is an apocalyptic number.

It is an amenable number.

195930773 is a deficient number, since it is larger than the sum of its proper divisors (1).

195930773 is an equidigital number, since it uses as much as digits as its factorization.

195930773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 178605, while the sum is 44.

The square root of 195930773 is about 13997.5273887926. The cubic root of 195930773 is about 580.8101767301.

The spelling of 195930773 in words is "one hundred ninety-five million, nine hundred thirty thousand, seven hundred seventy-three".