195705893 has 2 divisors, whose sum is σ = 195705894. Its totient is φ = 195705892.

The previous prime is 195705877. The next prime is 195705899. The reversal of 195705893 is 398507591.

195705893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125933284 + 69772609 = 11222^2 + 8353^2 .

It is a cyclic number.

It is not a de Polignac number, because 195705893 - 2⁴ = 195705877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195705899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97852946 + 97852947.

It is an arithmetic number, because the mean of its divisors is an integer number (97852947).

Almost surely, 2^195705893 is an apocalyptic number.

It is an amenable number.

195705893 is a deficient number, since it is larger than the sum of its proper divisors (1).

195705893 is an equidigital number, since it uses as much as digits as its factorization.

195705893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 340200, while the sum is 47.

The square root of 195705893 is about 13989.4922352457. The cubic root of 195705893 is about 580.5878829190.

The spelling of 195705893 in words is "one hundred ninety-five million, seven hundred five thousand, eight hundred ninety-three".