1082889 has 20 divisors (see below), whose sum is σ = 1677060. Its totient is φ = 695520.

The previous prime is 1082881. The next prime is 1082891. The reversal of 1082889 is 9882801.

It can be written as a sum of positive squares in 2 ways, for example, as 455625 + 627264 = 675^2 + 792^2 .

It is not a de Polignac number, because 1082889 - 2³ = 1082881 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1082881) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2119 + ... + 2579.

It is an arithmetic number, because the mean of its divisors is an integer number (83853).

2^1082889 is an apocalyptic number.

It is an amenable number.

1082889 is a deficient number, since it is larger than the sum of its proper divisors (594171).

1082889 is an equidigital number, since it uses as much as digits as its factorization.

1082889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502 (or 493 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 1082889 is about 1040.6195270126. The cubic root of 1082889 is about 102.6899590618.

The spelling of 1082889 in words is "one million, eighty-two thousand, eight hundred eighty-nine".