1048689 has 12 divisors (see below), whose sum is σ = 1530100. Its totient is φ = 692064.

The previous prime is 1048681. The next prime is 1048703. The reversal of 1048689 is 9868401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 613089 + 435600 = 783^2 + 660^2 .

It is not a de Polignac number, because 1048689 - 2³ = 1048681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1048681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 447 + ... + 1515.

2^1048689 is an apocalyptic number.

It is an amenable number.

1048689 is a deficient number, since it is larger than the sum of its proper divisors (481411).

1048689 is a wasteful number, since it uses less digits than its factorization.

1048689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184 (or 1181 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1048689 is about 1024.0551742948. The cubic root of 1048689 is about 101.5973166154.

The spelling of 1048689 in words is "one million, forty-eight thousand, six hundred eighty-nine".