9866693 has 2 divisors, whose sum is σ = 9866694. Its totient is φ = 9866692.

The previous prime is 9866687. The next prime is 9866707. The reversal of 9866693 is 3966689.

9866693 is digitally balanced in base 2, 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., 6543364 + 3323329 = 2558^2 + 1823^2 .

It is an emirp because it is prime and its reverse (3966689) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9866693 - 2⁴ = 9866677 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 (9866653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4933346 + 4933347.

It is an arithmetic number, because the mean of its divisors is an integer number (4933347).

Almost surely, 2^9866693 is an apocalyptic number.

It is an amenable number.

9866693 is a deficient number, since it is larger than the sum of its proper divisors (1).

9866693 is an equidigital number, since it uses as much as digits as its factorization.

9866693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 47.

The square root of 9866693 is about 3141.1292555385. The cubic root of 9866693 is about 214.4818458056.

The spelling of 9866693 in words is "nine million, eight hundred sixty-six thousand, six hundred ninety-three".