396439 has 8 divisors (see below), whose sum is σ = 413168. Its totient is φ = 380160.

The previous prime is 396437. The next prime is 396443. The reversal of 396439 is 934693.

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 396439 - 2¹ = 396437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396437) 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, 4039 + ... + 4135.

It is an arithmetic number, because the mean of its divisors is an integer number (51646).

2³⁹⁶⁴³⁹ is an apocalyptic number.

396439 is a deficient number, since it is larger than the sum of its proper divisors (16729).

396439 is an equidigital number, since it uses as much as digits as its factorization.

396439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225.

The product of its digits is 17496, while the sum is 34.

The square root of 396439 is about 629.6340206819. The cubic root of 396439 is about 73.4613306394.

The spelling of 396439 in words is "three hundred ninety-six thousand, four hundred thirty-nine".