9687389 has 2 divisors, whose sum is σ = 9687390. Its totient is φ = 9687388.

The previous prime is 9687367. The next prime is 9687401. The reversal of 9687389 is 9837869.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9406489 + 280900 = 3067^2 + 530^2 .

It is an emirp because it is prime and its reverse (9837869) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9687389 - 2¹⁶ = 9621853 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9687089) 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, 4843694 + 4843695.

It is an arithmetic number, because the mean of its divisors is an integer number (4843695).

Almost surely, 2^9687389 is an apocalyptic number.

It is an amenable number.

9687389 is a deficient number, since it is larger than the sum of its proper divisors (1).

9687389 is an equidigital number, since it uses as much as digits as its factorization.

9687389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 50.

The square root of 9687389 is about 3112.4570679770. The cubic root of 9687389 is about 213.1746603861.

The spelling of 9687389 in words is "nine million, six hundred eighty-seven thousand, three hundred eighty-nine".