395339905 has 4 divisors (see below), whose sum is σ = 474407892. Its totient is φ = 316271920.

The previous prime is 395339899. The next prime is 395339911. The reversal of 395339905 is 509933593.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (395339899) and next prime (395339911).

It can be written as a sum of positive squares in 2 ways, for example, as 82156096 + 313183809 = 9064^2 + 17697^2 .

It is not a de Polignac number, because 395339905 - 2¹⁷ = 395208833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39533986 + ... + 39533995.

It is an arithmetic number, because the mean of its divisors is an integer number (118601973).

Almost surely, 2^395339905 is an apocalyptic number.

It is an amenable number.

395339905 is a deficient number, since it is larger than the sum of its proper divisors (79067987).

395339905 is an equidigital number, since it uses as much as digits as its factorization.

395339905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79067986.

The product of its (nonzero) digits is 492075, while the sum is 46.

The square root of 395339905 is about 19883.1563138250. The cubic root of 395339905 is about 733.9337927547.

The spelling of 395339905 in words is "three hundred ninety-five million, three hundred thirty-nine thousand, nine hundred five".