439845073 has 2 divisors, whose sum is σ = 439845074. Its totient is φ = 439845072.

The previous prime is 439845053. The next prime is 439845139. The reversal of 439845073 is 370548934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 340882369 + 98962704 = 18463^2 + 9948^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-439845073 is a prime.

It is not a weakly prime, because it can be changed into another prime (439845053) 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 as a sum of consecutive naturals, namely, 219922536 + 219922537.

It is an arithmetic number, because the mean of its divisors is an integer number (219922537).

Almost surely, 2^439845073 is an apocalyptic number.

It is an amenable number.

439845073 is a deficient number, since it is larger than the sum of its proper divisors (1).

439845073 is an equidigital number, since it uses as much as digits as its factorization.

439845073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 439845073 is about 20972.4837108055. The cubic root of 439845073 is about 760.5012119734.

The spelling of 439845073 in words is "four hundred thirty-nine million, eight hundred forty-five thousand, seventy-three".