395824081 has 2 divisors, whose sum is σ = 395824082. Its totient is φ = 395824080.

The previous prime is 395824067. The next prime is 395824129. The reversal of 395824081 is 180428593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254689681 + 141134400 = 15959^2 + 11880^2 .

It is an emirp because it is prime and its reverse (180428593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 395824081 - 2⁹ = 395823569 is a prime.

It is a super-2 number, since 2×395824081² = 313353406198989122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (395824061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197912040 + 197912041.

It is an arithmetic number, because the mean of its divisors is an integer number (197912041).

Almost surely, 2^395824081 is an apocalyptic number.

It is an amenable number.

395824081 is a deficient number, since it is larger than the sum of its proper divisors (1).

395824081 is an equidigital number, since it uses as much as digits as its factorization.

395824081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 395824081 is about 19895.3281199381. The cubic root of 395824081 is about 734.2332887531.

The spelling of 395824081 in words is "three hundred ninety-five million, eight hundred twenty-four thousand, eighty-one".