396663 has 8 divisors (see below), whose sum is σ = 556800. Its totient is φ = 250488.

The previous prime is 396647. The next prime is 396667. The reversal of 396663 is 366693.

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

It is not a de Polignac number, because 396663 - 2⁴ = 396647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3423 + ... + 3536.

It is an arithmetic number, because the mean of its divisors is an integer number (69600).

2³⁹⁶⁶⁶³ is an apocalyptic number.

396663 is a deficient number, since it is larger than the sum of its proper divisors (160137).

396663 is a wasteful number, since it uses less digits than its factorization.

396663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6981.

The product of its digits is 17496, while the sum is 33.

The square root of 396663 is about 629.8118766743. The cubic root of 396663 is about 73.4751639906.

The spelling of 396663 in words is "three hundred ninety-six thousand, six hundred sixty-three".