8389013393 has 2 divisors, whose sum is σ = 8389013394. Its totient is φ = 8389013392.

The previous prime is 8389013389. The next prime is 8389013429. The reversal of 8389013393 is 3933109838.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8387445889 + 1567504 = 91583^2 + 1252^2 .

It is a cyclic number.

It is not a de Polignac number, because 8389013393 - 2² = 8389013389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8389013333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4194506696 + 4194506697.

It is an arithmetic number, because the mean of its divisors is an integer number (4194506697).

Almost surely, 2^8389013393 is an apocalyptic number.

It is an amenable number.

8389013393 is a deficient number, since it is larger than the sum of its proper divisors (1).

8389013393 is an equidigital number, since it uses as much as digits as its factorization.

8389013393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 8389013393 is about 91591.5574329861. The cubic root of 8389013393 is about 2031.9060771767.

The spelling of 8389013393 in words is "eight billion, three hundred eighty-nine million, thirteen thousand, three hundred ninety-three".