439701013 has 2 divisors, whose sum is σ = 439701014. Its totient is φ = 439701012.

The previous prime is 439700969. The next prime is 439701061. The reversal of 439701013 is 310107934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 269189649 + 170511364 = 16407^2 + 13058^2 .

It is a cyclic number.

It is not a de Polignac number, because 439701013 - 2⁹ = 439700501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (439707013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219850506 + 219850507.

It is an arithmetic number, because the mean of its divisors is an integer number (219850507).

Almost surely, 2^439701013 is an apocalyptic number.

It is an amenable number.

439701013 is a deficient number, since it is larger than the sum of its proper divisors (1).

439701013 is an equidigital number, since it uses as much as digits as its factorization.

439701013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 439701013 is about 20969.0489293148. The cubic root of 439701013 is about 760.4181753358.

Adding to 439701013 its reverse (310107934), we get a palindrome (749808947).

The spelling of 439701013 in words is "four hundred thirty-nine million, seven hundred one thousand, thirteen".