1000841 has 8 divisors (see below), whose sum is σ = 1071144. Its totient is φ = 931840.

The previous prime is 1000829. The next prime is 1000847. The reversal of 1000841 is 1480001.

It is a happy number.

1000841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10816 + 990025 = 104^2 + 995^2 .

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 1000841 - 2⁶ = 1000777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000847) 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, 1661 + ... + 2181.

It is an arithmetic number, because the mean of its divisors is an integer number (133893).

2^1000841 is an apocalyptic number.

It is an amenable number.

1000841 is a deficient number, since it is larger than the sum of its proper divisors (70303).

1000841 is a wasteful number, since it uses less digits than its factorization.

1000841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1000841 is about 1000.4204116270. The cubic root of 1000841 is about 100.0280254783.

Adding to 1000841 its reverse (1480001), we get a palindrome (2480842).

The spelling of 1000841 in words is "one million, eight hundred forty-one", and thus it is an aban number.