395823 has 4 divisors (see below), whose sum is σ = 527768. Its totient is φ = 263880.

The previous prime is 395803. The next prime is 395849. The reversal of 395823 is 328593.

It is a happy number.

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

It is not a de Polignac number, because 395823 - 2¹³ = 387631 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65968 + ... + 65973.

It is an arithmetic number, because the mean of its divisors is an integer number (131942).

2³⁹⁵⁸²³ is an apocalyptic number.

395823 is a deficient number, since it is larger than the sum of its proper divisors (131945).

395823 is a wasteful number, since it uses less digits than its factorization.

395823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131944.

The product of its digits is 6480, while the sum is 30.

The square root of 395823 is about 629.1446574517. The cubic root of 395823 is about 73.4232620353.

The spelling of 395823 in words is "three hundred ninety-five thousand, eight hundred twenty-three".