195870863 has 2 divisors, whose sum is σ = 195870864. Its totient is φ = 195870862.

The previous prime is 195870847. The next prime is 195870887. The reversal of 195870863 is 368078591.

It is a happy number.

195870863 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 is a cyclic number.

It is not a de Polignac number, because 195870863 - 2⁴ = 195870847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195870893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97935431 + 97935432.

It is an arithmetic number, because the mean of its divisors is an integer number (97935432).

Almost surely, 2^195870863 is an apocalyptic number.

195870863 is a deficient number, since it is larger than the sum of its proper divisors (1).

195870863 is an equidigital number, since it uses as much as digits as its factorization.

195870863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 195870863 is about 13995.3872043613. The cubic root of 195870863 is about 580.7509723415.

The spelling of 195870863 in words is "one hundred ninety-five million, eight hundred seventy thousand, eight hundred sixty-three".