439434563 has 4 divisors (see below), whose sum is σ = 444372120. Its totient is φ = 434497008.

The previous prime is 439434553. The next prime is 439434571. The reversal of 439434563 is 365434934.

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

It is a cyclic number.

It is not a de Polignac number, because 439434563 - 2²² = 435240259 is a prime.

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 439434563.

It is not an unprimeable number, because it can be changed into a prime (439434553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2468645 + ... + 2468822.

It is an arithmetic number, because the mean of its divisors is an integer number (111093030).

Almost surely, 2^439434563 is an apocalyptic number.

439434563 is a deficient number, since it is larger than the sum of its proper divisors (4937557).

439434563 is an equidigital number, since it uses as much as digits as its factorization.

439434563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4937556.

The product of its digits is 466560, while the sum is 41.

The square root of 439434563 is about 20962.6945548515. The cubic root of 439434563 is about 760.2645449088.

The spelling of 439434563 in words is "four hundred thirty-nine million, four hundred thirty-four thousand, five hundred sixty-three".