396823 has 8 divisors (see below), whose sum is σ = 459648. Its totient is φ = 335544.

The previous prime is 396733. The next prime is 396833. The reversal of 396823 is 328693.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 396823 - 2⁹ = 396311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240 + ... + 922.

It is an arithmetic number, because the mean of its divisors is an integer number (57456).

2³⁹⁶⁸²³ is an apocalyptic number.

396823 is a deficient number, since it is larger than the sum of its proper divisors (62825).

396823 is an equidigital number, since it uses as much as digits as its factorization.

396823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773.

The product of its digits is 7776, while the sum is 31.

The square root of 396823 is about 629.9388859247. The cubic root of 396823 is about 73.4850417676.

The spelling of 396823 in words is "three hundred ninety-six thousand, eight hundred twenty-three".