439681347 has 24 divisors (see below), whose sum is σ = 730645760. Its totient is φ = 249577200.

The previous prime is 439681331. The next prime is 439681379. The reversal of 439681347 is 743186934.

It is not a de Polignac number, because 439681347 - 2⁴ = 439681331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (439681327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13597 + ... + 32622.

Almost surely, 2^439681347 is an apocalyptic number.

439681347 is a deficient number, since it is larger than the sum of its proper divisors (290964413).

439681347 is a wasteful number, since it uses less digits than its factorization.

439681347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46383 (or 46380 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 439681347 is about 20968.5799948399. The cubic root of 439681347 is about 760.4068383846.

The spelling of 439681347 in words is "four hundred thirty-nine million, six hundred eighty-one thousand, three hundred forty-seven".