195713863 has 2 divisors, whose sum is σ = 195713864. Its totient is φ = 195713862.

The previous prime is 195713857. The next prime is 195713867. The reversal of 195713863 is 368317591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 195713863 - 2²¹ = 193616711 is a prime.

It is a super-3 number, since 3×195713863³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195713867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97856931 + 97856932.

It is an arithmetic number, because the mean of its divisors is an integer number (97856932).

Almost surely, 2^195713863 is an apocalyptic number.

195713863 is a deficient number, since it is larger than the sum of its proper divisors (1).

195713863 is an equidigital number, since it uses as much as digits as its factorization.

195713863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 43.

The square root of 195713863 is about 13989.7770890032. Note that the first 3 decimals coincide. The cubic root of 195713863 is about 580.5957641714.

It can be divided in two parts, 1957138 and 63, that added together give a square (1957201 = 1399²).

The spelling of 195713863 in words is "one hundred ninety-five million, seven hundred thirteen thousand, eight hundred sixty-three".