395877047 has 2 divisors, whose sum is σ = 395877048. Its totient is φ = 395877046.

The previous prime is 395876953. The next prime is 395877061. The reversal of 395877047 is 740778593.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 395877047 - 2¹² = 395872951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 395876986 and 395877004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395877067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197938523 + 197938524.

It is an arithmetic number, because the mean of its divisors is an integer number (197938524).

Almost surely, 2^395877047 is an apocalyptic number.

395877047 is a deficient number, since it is larger than the sum of its proper divisors (1).

395877047 is an equidigital number, since it uses as much as digits as its factorization.

395877047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1481760, while the sum is 50.

The square root of 395877047 is about 19896.6591919347. The cubic root of 395877047 is about 734.2660370267.

The spelling of 395877047 in words is "three hundred ninety-five million, eight hundred seventy-seven thousand, forty-seven".