439307069 has 2 divisors, whose sum is σ = 439307070. Its totient is φ = 439307068.

The previous prime is 439307053. The next prime is 439307117. The reversal of 439307069 is 960703934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 258727225 + 180579844 = 16085^2 + 13438^2 .

It is a cyclic number.

It is not a de Polignac number, because 439307069 - 2⁴ = 439307053 is a prime.

It is a super-2 number, since 2×439307069² = 385981401746741522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (439307039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219653534 + 219653535.

It is an arithmetic number, because the mean of its divisors is an integer number (219653535).

Almost surely, 2^439307069 is an apocalyptic number.

It is an amenable number.

439307069 is a deficient number, since it is larger than the sum of its proper divisors (1).

439307069 is an equidigital number, since it uses as much as digits as its factorization.

439307069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 439307069 is about 20959.6533606832. The cubic root of 439307069 is about 760.1910121225.

The spelling of 439307069 in words is "four hundred thirty-nine million, three hundred seven thousand, sixty-nine".