1004865 has 16 divisors (see below), whose sum is σ = 1660416. Its totient is φ = 518400.

The previous prime is 1004797. The next prime is 1004873. The reversal of 1004865 is 5684001.

1004865 is nontrivially palindromic in base 14.

1004865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1004865 - 2⁷ = 1004737 is a prime.

It is a Curzon number.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 616 + ... + 1545.

It is an arithmetic number, because the mean of its divisors is an integer number (103776).

2^1004865 is an apocalyptic number.

1004865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1004865 is a deficient number, since it is larger than the sum of its proper divisors (655551).

1004865 is a wasteful number, since it uses less digits than its factorization.

1004865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1004865 is about 1002.4295486467. The cubic root of 1004865 is about 100.1619043949.

Adding to 1004865 its reverse (5684001), we get a palindrome (6688866).

The spelling of 1004865 in words is "one million, four thousand, eight hundred sixty-five".