1004489 has 4 divisors (see below), whose sum is σ = 1007556. Its totient is φ = 1001424.

The previous prime is 1004483. The next prime is 1004501. The reversal of 1004489 is 9844001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 478864 + 525625 = 692^2 + 725^2 .

It is a cyclic number.

It is not a de Polignac number, because 1004489 - 2⁸ = 1004233 is a prime.

It is a super-2 number, since 2×1004489² = 2017996302242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1004483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 974 + ... + 1719.

It is an arithmetic number, because the mean of its divisors is an integer number (251889).

2^1004489 is an apocalyptic number.

It is an amenable number.

1004489 is a deficient number, since it is larger than the sum of its proper divisors (3067).

1004489 is an equidigital number, since it uses as much as digits as its factorization.

1004489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1004489 is about 1002.2419867477. The cubic root of 1004489 is about 100.1494099887.

It can be divided in two parts, 100 and 4489, that multiplied together give a square (448900 = 670²).

The spelling of 1004489 in words is "one million, four thousand, four hundred eighty-nine".