1004385 has 8 divisors (see below), whose sum is σ = 1607040. Its totient is φ = 535664.

The previous prime is 1004371. The next prime is 1004401. The reversal of 1004385 is 5834001.

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 1004385 - 2¹⁰ = 1003361 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33465 + ... + 33494.

It is an arithmetic number, because the mean of its divisors is an integer number (200880).

2^1004385 is an apocalyptic number.

1004385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1004385 is a deficient number, since it is larger than the sum of its proper divisors (602655).

1004385 is an equidigital number, since it uses as much as digits as its factorization.

1004385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66967.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1004385 is about 1002.1901017272. The cubic root of 1004385 is about 100.1459535387.

Adding to 1004385 its reverse (5834001), we get a palindrome (6838386).

The spelling of 1004385 in words is "one million, four thousand, three hundred eighty-five".