395875647 has 8 divisors (see below), whose sum is σ = 586482480. Its totient is φ = 263917080.

The previous prime is 395875639. The next prime is 395875687. The reversal of 395875647 is 746578593.

395875647 is a `hidden beast` number, since 3 + 9 + 587 + 56 + 4 + 7 = 666.

It is not a de Polignac number, because 395875647 - 2³ = 395875639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 395875593 and 395875602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395875687) 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 in 7 ways as a sum of consecutive naturals, for example, 7331004 + ... + 7331057.

It is an arithmetic number, because the mean of its divisors is an integer number (73310310).

Almost surely, 2^395875647 is an apocalyptic number.

395875647 is a deficient number, since it is larger than the sum of its proper divisors (190606833).

395875647 is a wasteful number, since it uses less digits than its factorization.

395875647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14662070 (or 14662064 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 54.

The square root of 395875647 is about 19896.6240101179. The cubic root of 395875647 is about 734.2651714603.

The spelling of 395875647 in words is "three hundred ninety-five million, eight hundred seventy-five thousand, six hundred forty-seven".