789420013 has 2 divisors, whose sum is σ = 789420014. Its totient is φ = 789420012.

The previous prime is 789419993. The next prime is 789420089. The reversal of 789420013 is 310024987.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 704743209 + 84676804 = 26547^2 + 9202^2 .

It is an emirp because it is prime and its reverse (310024987) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-789420013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (789420913) 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, 394710006 + 394710007.

It is an arithmetic number, because the mean of its divisors is an integer number (394710007).

Almost surely, 2^789420013 is an apocalyptic number.

It is an amenable number.

789420013 is a deficient number, since it is larger than the sum of its proper divisors (1).

789420013 is an equidigital number, since it uses as much as digits as its factorization.

789420013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 789420013 is about 28096.6192450266. The cubic root of 789420013 is about 924.2072635410.

The spelling of 789420013 in words is "seven hundred eighty-nine million, four hundred twenty thousand, thirteen".