6620446039 has 2 divisors, whose sum is σ = 6620446040. Its totient is φ = 6620446038.

The previous prime is 6620446031. The next prime is 6620446067. The reversal of 6620446039 is 9306440266.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6620446039 - 2³ = 6620446031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6620445992 and 6620446010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6620446031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3310223019 + 3310223020.

It is an arithmetic number, because the mean of its divisors is an integer number (3310223020).

Almost surely, 2^6620446039 is an apocalyptic number.

6620446039 is a deficient number, since it is larger than the sum of its proper divisors (1).

6620446039 is an equidigital number, since it uses as much as digits as its factorization.

6620446039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 40.

The square root of 6620446039 is about 81366.1234114051. The cubic root of 6620446039 is about 1877.7124393792.

The spelling of 6620446039 in words is "six billion, six hundred twenty million, four hundred forty-six thousand, thirty-nine".