1004539 has 4 divisors (see below), whose sum is σ = 1006624. Its totient is φ = 1002456.

The previous prime is 1004537. The next prime is 1004551. The reversal of 1004539 is 9354001.

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

It is a cyclic number.

It is not a de Polignac number, because 1004539 - 2¹ = 1004537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1004537) 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, 94 + ... + 1420.

It is an arithmetic number, because the mean of its divisors is an integer number (251656).

2^1004539 is an apocalyptic number.

1004539 is a deficient number, since it is larger than the sum of its proper divisors (2085).

1004539 is an equidigital number, since it uses as much as digits as its factorization.

1004539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2084.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1004539 is about 1002.2669305130. The cubic root of 1004539 is about 100.1510716586.

The spelling of 1004539 in words is "one million, four thousand, five hundred thirty-nine".