195377927 has 2 divisors, whose sum is σ = 195377928. Its totient is φ = 195377926.

The previous prime is 195377921. The next prime is 195377929. The reversal of 195377927 is 729773591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 195377927 - 2⁶ = 195377863 is a prime.

Together with 195377929, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195377921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97688963 + 97688964.

It is an arithmetic number, because the mean of its divisors is an integer number (97688964).

Almost surely, 2^195377927 is an apocalyptic number.

195377927 is a deficient number, since it is larger than the sum of its proper divisors (1).

195377927 is an equidigital number, since it uses as much as digits as its factorization.

195377927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 833490, while the sum is 50.

The square root of 195377927 is about 13977.7654508866. The cubic root of 195377927 is about 580.2633831517.

The spelling of 195377927 in words is "one hundred ninety-five million, three hundred seventy-seven thousand, nine hundred twenty-seven".