9381397 has 2 divisors, whose sum is σ = 9381398. Its totient is φ = 9381396.

The previous prime is 9381391. The next prime is 9381403. The reversal of 9381397 is 7931839.

It is a balanced prime because it is at equal distance from previous prime (9381391) and next prime (9381403).

It can be written as a sum of positive squares in only one way, i.e., 7623121 + 1758276 = 2761^2 + 1326^2 .

It is a cyclic number.

It is not a de Polignac number, because 9381397 - 2³ = 9381389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9381391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4690698 + 4690699.

It is an arithmetic number, because the mean of its divisors is an integer number (4690699).

Almost surely, 2^9381397 is an apocalyptic number.

It is an amenable number.

9381397 is a deficient number, since it is larger than the sum of its proper divisors (1).

9381397 is an equidigital number, since it uses as much as digits as its factorization.

9381397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 40.

The square root of 9381397 is about 3062.9066260662. The cubic root of 9381397 is about 210.9061148769.

The spelling of 9381397 in words is "nine million, three hundred eighty-one thousand, three hundred ninety-seven".