396486839 has 4 divisors (see below), whose sum is σ = 453127824. Its totient is φ = 339845856.

The previous prime is 396486833. The next prime is 396486847. The reversal of 396486839 is 938684693.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 396486839 - 2¹⁶ = 396421303 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 (396486833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28320482 + ... + 28320495.

It is an arithmetic number, because the mean of its divisors is an integer number (113281956).

Almost surely, 2^396486839 is an apocalyptic number.

396486839 is a deficient number, since it is larger than the sum of its proper divisors (56640985).

396486839 is an equidigital number, since it uses as much as digits as its factorization.

396486839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56640984.

The product of its digits is 6718464, while the sum is 56.

The square root of 396486839 is about 19911.9772749971. The cubic root of 396486839 is about 734.6428542373.

The spelling of 396486839 in words is "three hundred ninety-six million, four hundred eighty-six thousand, eight hundred thirty-nine".