395090065 has 4 divisors (see below), whose sum is σ = 474108084. Its totient is φ = 316072048.

The previous prime is 395090057. The next prime is 395090119. The reversal of 395090065 is 560090593.

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

It can be written as a sum of positive squares in 2 ways, for example, as 279290944 + 115799121 = 16712^2 + 10761^2 .

It is a cyclic number.

It is not a de Polignac number, because 395090065 - 2³ = 395090057 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39509002 + ... + 39509011.

It is an arithmetic number, because the mean of its divisors is an integer number (118527021).

Almost surely, 2^395090065 is an apocalyptic number.

It is an amenable number.

395090065 is a deficient number, since it is larger than the sum of its proper divisors (79018019).

395090065 is an equidigital number, since it uses as much as digits as its factorization.

395090065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79018018.

The product of its (nonzero) digits is 36450, while the sum is 37.

The square root of 395090065 is about 19876.8726161839. The cubic root of 395090065 is about 733.7791539600.

The spelling of 395090065 in words is "three hundred ninety-five million, ninety thousand, sixty-five".