1084609 has 2 divisors, whose sum is σ = 1084610. Its totient is φ = 1084608.

The previous prime is 1084579. The next prime is 1084613. The reversal of 1084609 is 9064801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 908209 + 176400 = 953^2 + 420^2 .

It is an emirp because it is prime and its reverse (9064801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1084609 - 2¹³ = 1076417 is a prime.

It is not a weakly prime, because it can be changed into another prime (1084649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542304 + 542305.

It is an arithmetic number, because the mean of its divisors is an integer number (542305).

2^1084609 is an apocalyptic number.

It is an amenable number.

1084609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1084609 is an equidigital number, since it uses as much as digits as its factorization.

1084609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1084609 is about 1041.4456298818. The cubic root of 1084609 is about 102.7442992873.

The spelling of 1084609 in words is "one million, eighty-four thousand, six hundred nine".