1084889 has 8 divisors (see below), whose sum is σ = 1237320. Its totient is φ = 942336.

The previous prime is 1084871. The next prime is 1084891. The reversal of 1084889 is 9884801.

It can be written as a sum of positive squares in 4 ways, for example, as 444889 + 640000 = 667^2 + 800^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1084889 - 2¹⁶ = 1019353 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (1084829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2234 + ... + 2675.

It is an arithmetic number, because the mean of its divisors is an integer number (154665).

2^1084889 is an apocalyptic number.

It is an amenable number.

1084889 is a deficient number, since it is larger than the sum of its proper divisors (152431).

1084889 is a wasteful number, since it uses less digits than its factorization.

1084889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4939.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 1084889 is about 1041.5800497321. The cubic root of 1084889 is about 102.7531399320.

The spelling of 1084889 in words is "one million, eighty-four thousand, eight hundred eighty-nine".