7989601339 has 2 divisors, whose sum is σ = 7989601340. Its totient is φ = 7989601338.

The previous prime is 7989601337. The next prime is 7989601421. The reversal of 7989601339 is 9331069897.

It is a weak prime.

It is an emirp because it is prime and its reverse (9331069897) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7989601339 - 2¹ = 7989601337 is a prime.

Together with 7989601337, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 7989601339.

It is not a weakly prime, because it can be changed into another prime (7989601337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3994800669 + 3994800670.

It is an arithmetic number, because the mean of its divisors is an integer number (3994800670).

Almost surely, 2^7989601339 is an apocalyptic number.

7989601339 is a deficient number, since it is larger than the sum of its proper divisors (1).

7989601339 is an equidigital number, since it uses as much as digits as its factorization.

7989601339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2204496, while the sum is 55.

The square root of 7989601339 is about 89384.5699156180. The cubic root of 7989601339 is about 1999.1330691864.

The spelling of 7989601339 in words is "seven billion, nine hundred eighty-nine million, six hundred one thousand, three hundred thirty-nine".