396489 has 8 divisors (see below), whose sum is σ = 532800. Its totient is φ = 262256.

The previous prime is 396479. The next prime is 396509. The reversal of 396489 is 984693.

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 396489 - 2¹⁷ = 265417 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 396489.

It is not an unprimeable number, because it can be changed into a prime (396449) 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, 4 + ... + 890.

It is an arithmetic number, because the mean of its divisors is an integer number (66600).

2³⁹⁶⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

396489 is a deficient number, since it is larger than the sum of its proper divisors (136311).

396489 is a wasteful number, since it uses less digits than its factorization.

396489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039.

The product of its digits is 46656, while the sum is 39.

The square root of 396489 is about 629.6737250354. The cubic root of 396489 is about 73.4644188927.

The spelling of 396489 in words is "three hundred ninety-six thousand, four hundred eighty-nine".