7115389 has 2 divisors, whose sum is σ = 7115390. Its totient is φ = 7115388.

The previous prime is 7115387. The next prime is 7115417. The reversal of 7115389 is 9835117.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7112889 + 2500 = 2667^2 + 50^2 .

It is an emirp because it is prime and its reverse (9835117) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7115389 - 2¹ = 7115387 is a prime.

Together with 7115387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7115387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3557694 + 3557695.

It is an arithmetic number, because the mean of its divisors is an integer number (3557695).

Almost surely, 2^7115389 is an apocalyptic number.

It is an amenable number.

7115389 is a deficient number, since it is larger than the sum of its proper divisors (1).

7115389 is an equidigital number, since it uses as much as digits as its factorization.

7115389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 34.

The square root of 7115389 is about 2667.4686502375. The cubic root of 7115389 is about 192.3384961240.

The spelling of 7115389 in words is "seven million, one hundred fifteen thousand, three hundred eighty-nine".