1084859 has 2 divisors, whose sum is σ = 1084860. Its totient is φ = 1084858.

The previous prime is 1084829. The next prime is 1084871. The reversal of 1084859 is 9584801.

It is a strong prime.

It is an emirp because it is prime and its reverse (9584801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1084859 - 2¹² = 1080763 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (1084829) 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, 542429 + 542430.

It is an arithmetic number, because the mean of its divisors is an integer number (542430).

2^1084859 is an apocalyptic number.

1084859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1084859 is an equidigital number, since it uses as much as digits as its factorization.

1084859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 1084859 is about 1041.5656484351. The cubic root of 1084859 is about 102.7521927929.

The spelling of 1084859 in words is "one million, eighty-four thousand, eight hundred fifty-nine".