195769393 has 2 divisors, whose sum is σ = 195769394. Its totient is φ = 195769392.

The previous prime is 195769391. The next prime is 195769417. The reversal of 195769393 is 393967591.

195769393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169728784 + 26040609 = 13028^2 + 5103^2 .

It is a cyclic number.

It is not a de Polignac number, because 195769393 - 2¹ = 195769391 is a prime.

Together with 195769391, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 195769393.

It is not a weakly prime, because it can be changed into another prime (195769391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97884696 + 97884697.

It is an arithmetic number, because the mean of its divisors is an integer number (97884697).

Almost surely, 2^195769393 is an apocalyptic number.

It is an amenable number.

195769393 is a deficient number, since it is larger than the sum of its proper divisors (1).

195769393 is an equidigital number, since it uses as much as digits as its factorization.

195769393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1377810, while the sum is 52.

The square root of 195769393 is about 13991.7616117485. The cubic root of 195769393 is about 580.6506698954.

The spelling of 195769393 in words is "one hundred ninety-five million, seven hundred sixty-nine thousand, three hundred ninety-three".