9986611 has 2 divisors, whose sum is σ = 9986612. Its totient is φ = 9986610.

The previous prime is 9986593. The next prime is 9986651. The reversal of 9986611 is 1166899.

It is an a-pointer prime, because the next prime (9986651) can be obtained adding 9986611 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9986611 - 2¹¹ = 9984563 is a prime.

It is a nialpdrome in base 10.

It is not a weakly prime, because it can be changed into another prime (9986651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4993305 + 4993306.

It is an arithmetic number, because the mean of its divisors is an integer number (4993306).

Almost surely, 2^9986611 is an apocalyptic number.

9986611 is a deficient number, since it is larger than the sum of its proper divisors (1).

9986611 is an equidigital number, since it uses as much as digits as its factorization.

9986611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 40.

The square root of 9986611 is about 3160.1599643056. The cubic root of 9986611 is about 215.3472736382.

The spelling of 9986611 in words is "nine million, nine hundred eighty-six thousand, six hundred eleven".