439487 has 4 divisors (see below), whose sum is σ = 453696. Its totient is φ = 425280.

The previous prime is 439471. The next prime is 439493. The reversal of 439487 is 784934.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 784934 = 2 ⋅392467.

It is a cyclic number.

It is not a de Polignac number, because 439487 - 2⁴ = 439471 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 (439427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7058 + ... + 7119.

It is an arithmetic number, because the mean of its divisors is an integer number (113424).

2⁴³⁹⁴⁸⁷ is an apocalyptic number.

439487 is a deficient number, since it is larger than the sum of its proper divisors (14209).

439487 is a wasteful number, since it uses less digits than its factorization.

439487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14208.

The product of its digits is 24192, while the sum is 35.

The square root of 439487 is about 662.9381569951. The cubic root of 439487 is about 76.0294784076.

The spelling of 439487 in words is "four hundred thirty-nine thousand, four hundred eighty-seven".