9986369 has 2 divisors, whose sum is σ = 9986370. Its totient is φ = 9986368.

The previous prime is 9986359. The next prime is 9986377. The reversal of 9986369 is 9636899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9241600 + 744769 = 3040^2 + 863^2 .

It is an emirp because it is prime and its reverse (9636899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9986369 - 2⁸ = 9986113 is a prime.

It is a super-2 number, since 2×9986369² = 199455131608322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9986359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4993184 + 4993185.

It is an arithmetic number, because the mean of its divisors is an integer number (4993185).

Almost surely, 2^9986369 is an apocalyptic number.

It is an amenable number.

9986369 is a deficient number, since it is larger than the sum of its proper divisors (1).

9986369 is an equidigital number, since it uses as much as digits as its factorization.

9986369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 629856, while the sum is 50.

The square root of 9986369 is about 3160.1216748727. The cubic root of 9986369 is about 215.3455341605.

It can be divided in two parts, 99 and 86369, that added together give a palindrome (86468).

The spelling of 9986369 in words is "nine million, nine hundred eighty-six thousand, three hundred sixty-nine".