439967 has 16 divisors (see below), whose sum is σ = 525312. Its totient is φ = 364320.

The previous prime is 439961. The next prime is 439969. The reversal of 439967 is 769934.

It is not a de Polignac number, because 439967 - 2⁶ = 439903 is a prime.

It is a super-2 number, since 2×439967² = 387141922178, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 439967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439961) 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 15 ways as a sum of consecutive naturals, for example, 9338 + ... + 9384.

It is an arithmetic number, because the mean of its divisors is an integer number (32832).

2⁴³⁹⁹⁶⁷ is an apocalyptic number.

439967 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

439967 is a deficient number, since it is larger than the sum of its proper divisors (85345).

439967 is a wasteful number, since it uses less digits than its factorization.

439967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118.

The product of its digits is 40824, while the sum is 38.

The square root of 439967 is about 663.3000829187. The cubic root of 439967 is about 76.0571476915.

The spelling of 439967 in words is "four hundred thirty-nine thousand, nine hundred sixty-seven".