195567797 has 2 divisors, whose sum is σ = 195567798. Its totient is φ = 195567796.

The previous prime is 195567773. The next prime is 195567821. The reversal of 195567797 is 797765591.

It is a balanced prime because it is at equal distance from previous prime (195567773) and next prime (195567821).

It can be written as a sum of positive squares in only one way, i.e., 166126321 + 29441476 = 12889^2 + 5426^2 .

It is a cyclic number.

It is not a de Polignac number, because 195567797 - 2⁶ = 195567733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195567727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97783898 + 97783899.

It is an arithmetic number, because the mean of its divisors is an integer number (97783899).

Almost surely, 2^195567797 is an apocalyptic number.

It is an amenable number.

195567797 is a deficient number, since it is larger than the sum of its proper divisors (1).

195567797 is an equidigital number, since it uses as much as digits as its factorization.

195567797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4167450, while the sum is 56.

The square root of 195567797 is about 13984.5556597269. Note that the first 3 decimals coincide. The cubic root of 195567797 is about 580.4512906599.

The spelling of 195567797 in words is "one hundred ninety-five million, five hundred sixty-seven thousand, seven hundred ninety-seven".