394565 has 16 divisors (see below), whose sum is σ = 511488. Its totient is φ = 291456.

The previous prime is 394549. The next prime is 394571. The reversal of 394565 is 565493.

It is a happy number.

It is not a de Polignac number, because 394565 - 2⁴ = 394549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5369 + ... + 5441.

It is an arithmetic number, because the mean of its divisors is an integer number (31968).

2³⁹⁴⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

394565 is a deficient number, since it is larger than the sum of its proper divisors (116923).

394565 is a wasteful number, since it uses less digits than its factorization.

394565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148.

The product of its digits is 16200, while the sum is 32.

The square root of 394565 is about 628.1440917497. The cubic root of 394565 is about 73.3453951693.

It can be divided in two parts, 394 and 565, that added together give a palindrome (959).

The spelling of 394565 in words is "three hundred ninety-four thousand, five hundred sixty-five".