395584901 has 2 divisors, whose sum is σ = 395584902. Its totient is φ = 395584900.

The previous prime is 395584879. The next prime is 395584957. The reversal of 395584901 is 109485593.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 244171876 + 151413025 = 15626^2 + 12305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-395584901 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395584961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197792450 + 197792451.

It is an arithmetic number, because the mean of its divisors is an integer number (197792451).

Almost surely, 2^395584901 is an apocalyptic number.

It is an amenable number.

395584901 is a deficient number, since it is larger than the sum of its proper divisors (1).

395584901 is an equidigital number, since it uses as much as digits as its factorization.

395584901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 395584901 is about 19889.3162527021. The cubic root of 395584901 is about 734.0853700940.

The spelling of 395584901 in words is "three hundred ninety-five million, five hundred eighty-four thousand, nine hundred one".