7389031393 has 2 divisors, whose sum is σ = 7389031394. Its totient is φ = 7389031392.

The previous prime is 7389031369. The next prime is 7389031421. The reversal of 7389031393 is 3931309837.

7389031393 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7264664289 + 124367104 = 85233^2 + 11152^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7389031393 is a prime.

It is not a weakly prime, because it can be changed into another prime (7389031493) 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, 3694515696 + 3694515697.

It is an arithmetic number, because the mean of its divisors is an integer number (3694515697).

Almost surely, 2^7389031393 is an apocalyptic number.

It is an amenable number.

7389031393 is a deficient number, since it is larger than the sum of its proper divisors (1).

7389031393 is an equidigital number, since it uses as much as digits as its factorization.

7389031393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 46.

The square root of 7389031393 is about 85959.4752950482. The cubic root of 7389031393 is about 1947.7318702481.

The spelling of 7389031393 in words is "seven billion, three hundred eighty-nine million, thirty-one thousand, three hundred ninety-three".