395944665 has 16 divisors (see below), whose sum is σ = 636518976. Its totient is φ = 210168000.

The previous prime is 395944663. The next prime is 395944673. The reversal of 395944665 is 566449593.

395944665 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 395944665 - 2¹ = 395944663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (395944663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59386 + ... + 65715.

It is an arithmetic number, because the mean of its divisors is an integer number (39782436).

Almost surely, 2^395944665 is an apocalyptic number.

It is an amenable number.

395944665 is a deficient number, since it is larger than the sum of its proper divisors (240574311).

395944665 is a wasteful number, since it uses less digits than its factorization.

395944665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125320.

The product of its digits is 3499200, while the sum is 51.

The square root of 395944665 is about 19898.3583493714. The cubic root of 395944665 is about 734.3078402202.

The spelling of 395944665 in words is "three hundred ninety-five million, nine hundred forty-four thousand, six hundred sixty-five".