396813 has 8 divisors (see below), whose sum is σ = 532000. Its totient is φ = 263088.

The previous prime is 396733. The next prime is 396833. The reversal of 396813 is 318693.

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

It is not a de Polignac number, because 396813 - 2⁹ = 396301 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 858 + ... + 1236.

It is an arithmetic number, because the mean of its divisors is an integer number (66500).

2³⁹⁶⁸¹³ is an apocalyptic number.

It is an amenable number.

396813 is a deficient number, since it is larger than the sum of its proper divisors (135187).

396813 is a wasteful number, since it uses less digits than its factorization.

396813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731.

The product of its digits is 3888, while the sum is 30.

The square root of 396813 is about 629.9309485967. The cubic root of 396813 is about 73.4844244843.

The spelling of 396813 in words is "three hundred ninety-six thousand, eight hundred thirteen".