8986409 has 2 divisors, whose sum is σ = 8986410. Its totient is φ = 8986408.

The previous prime is 8986403. The next prime is 8986423. The reversal of 8986409 is 9046898.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8970025 + 16384 = 2995^2 + 128^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8986409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8986409.

It is not a weakly prime, because it can be changed into another prime (8986403) 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, 4493204 + 4493205.

It is an arithmetic number, because the mean of its divisors is an integer number (4493205).

Almost surely, 2^8986409 is an apocalyptic number.

It is an amenable number.

8986409 is a deficient number, since it is larger than the sum of its proper divisors (1).

8986409 is an equidigital number, since it uses as much as digits as its factorization.

8986409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 8986409 is about 2997.7339775237. The cubic root of 8986409 is about 207.9036242990.

The spelling of 8986409 in words is "eight million, nine hundred eighty-six thousand, four hundred nine".