439471871 has 2 divisors, whose sum is σ = 439471872. Its totient is φ = 439471870.

The previous prime is 439471867. The next prime is 439471883. The reversal of 439471871 is 178174934.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 439471871 - 2² = 439471867 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (439471831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219735935 + 219735936.

It is an arithmetic number, because the mean of its divisors is an integer number (219735936).

Almost surely, 2^439471871 is an apocalyptic number.

439471871 is a deficient number, since it is larger than the sum of its proper divisors (1).

439471871 is an equidigital number, since it uses as much as digits as its factorization.

439471871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 44.

The square root of 439471871 is about 20963.5844024823. The cubic root of 439471871 is about 760.2860597898.

The spelling of 439471871 in words is "four hundred thirty-nine million, four hundred seventy-one thousand, eight hundred seventy-one".